diff --git a/mis_builder/README.rst b/mis_builder/README.rst
index 823dc3906..8a5930929 100644
--- a/mis_builder/README.rst
+++ b/mis_builder/README.rst
@@ -1,7 +1,3 @@
-.. image:: https://odoo-community.org/readme-banner-image
-   :target: https://odoo-community.org/get-involved?utm_source=readme
-   :alt: Odoo Community Association
-
 ===========
 MIS Builder
 ===========
@@ -17,7 +13,7 @@ MIS Builder
 .. |badge1| image:: https://img.shields.io/badge/maturity-Production%2FStable-green.png
     :target: https://odoo-community.org/page/development-status
     :alt: Production/Stable
-.. |badge2| image:: https://img.shields.io/badge/license-AGPL--3-blue.png
+.. |badge2| image:: https://img.shields.io/badge/licence-AGPL--3-blue.png
     :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
     :alt: License: AGPL-3
 .. |badge3| image:: https://img.shields.io/badge/github-OCA%2Fmis--builder-lightgray.png?logo=github
diff --git a/mis_builder/__manifest__.py b/mis_builder/__manifest__.py
index 492413377..b831aaf3e 100644
--- a/mis_builder/__manifest__.py
+++ b/mis_builder/__manifest__.py
@@ -3,7 +3,7 @@
 
 {
     "name": "MIS Builder",
-    "version": "18.0.1.7.3",
+    "version": "18.0.2.0.0",
     "category": "Reporting",
     "summary": """
         Build 'Management Information System' Reports and Dashboards
@@ -13,7 +13,6 @@
     "depends": [
         "account",
         "board",
-        "report_xlsx",  # OCA/reporting-engine
         "date_range",  # OCA/server-ux
     ],
     "data": [
@@ -26,7 +25,6 @@
         "security/ir.model.access.csv",
         "security/mis_builder_security.xml",
         "report/mis_report_instance_qweb.xml",
-        "report/mis_report_instance_xlsx.xml",
     ],
     "assets": {
         "web.assets_backend": [
diff --git a/mis_builder/migrations/18.0.2.0.0/pre-migration.py b/mis_builder/migrations/18.0.2.0.0/pre-migration.py
new file mode 100644
index 000000000..33bac7a12
--- /dev/null
+++ b/mis_builder/migrations/18.0.2.0.0/pre-migration.py
@@ -0,0 +1,36 @@
+import logging
+
+from openupgradelib import openupgrade
+
+_logger = logging.getLogger(__name__)
+
+xmlid_renames = [
+    ("mis_builder.xls_export", "mis_builder_report_xlsx.xls_export"),
+]
+
+
+@openupgrade.migrate()
+def migrate(env, version):
+    env.cr.execute("""
+        SELECT count(*)
+        FROM ir_module_module
+        WHERE name = 'mis_builder_report_xlsx'""")
+    if env.cr.fetchone()[0] == 0:
+        _logger.error(
+            "Unable to found the module mis_builder_report_xlsx.\n"
+            " The module mis_builder has been refactored"
+            " and splitted into another module named"
+            " 'mis_builder_report_xlsx'."
+            " If you don't get this module in your addons path"
+            " the feature to export in XLSX will be lost.\n"
+            " More information:"
+            " https://github.com/OCA/mis-builder/pull/728"
+        )
+    openupgrade.logged_query(
+        env.cr,
+        """
+        UPDATE ir_module_module
+        SET state='to upgrade'
+        WHERE name = 'mis_builder_report_xlsx' AND state='uninstalled'""",
+    )
+    openupgrade.rename_xmlids(env.cr, xmlid_renames)
diff --git a/mis_builder/models/mis_report_instance.py b/mis_builder/models/mis_report_instance.py
index 640c6cf37..64c735213 100644
--- a/mis_builder/models/mis_report_instance.py
+++ b/mis_builder/models/mis_report_instance.py
@@ -792,12 +792,6 @@ def print_pdf(self):
             .report_action(self, data=dict(dummy=True))  # required to propagate context
         )
 
-    def export_xls(self):
-        self.ensure_one()
-        return self.env.ref("mis_builder.xls_export").report_action(
-            self, data=dict(dummy=True)
-        )  # required to propagate context
-
     def display_settings(self):
         assert len(self.ids) <= 1
         view_id = self.env.ref("mis_builder.mis_report_instance_view_form")
diff --git a/mis_builder/models/mis_report_style.py b/mis_builder/models/mis_report_style.py
index 287984d0b..88444ed3b 100644
--- a/mis_builder/models/mis_report_style.py
+++ b/mis_builder/models/mis_report_style.py
@@ -74,16 +74,6 @@ def check_positive_val(self):
         ("xx-large", "xx-large"),
     ]
 
-    _font_size_to_xlsx_size = {
-        "medium": 11,
-        "xx-small": 5,
-        "x-small": 7,
-        "small": 9,
-        "large": 13,
-        "x-large": 15,
-        "xx-large": 17,
-    }
-
     # style name
     name = fields.Char(string="Style name", required=True)
 
@@ -309,36 +299,6 @@ def compare_and_render(
             delta_r = self.render(lang, delta_style, delta_type, delta, sign="+")
         return delta, delta_r, delta_style, delta_type
 
-    @api.model
-    def to_xlsx_style(self, var_type, props, no_indent=False):
-        xlsx_attributes = [
-            ("italic", props.font_style == "italic"),
-            ("bold", props.font_weight == "bold"),
-            ("font_size", self._font_size_to_xlsx_size.get(props.font_size, 11)),
-            ("font_color", props.color),
-            ("bg_color", props.background_color),
-        ]
-        if var_type == TYPE_NUM:
-            num_format = "#,##0"
-            if props.dp:
-                num_format += "."
-                num_format += "0" * props.dp
-            if props.prefix:
-                num_format = f'"{props.prefix} "{num_format}'
-            if props.suffix:
-                num_format = f'{num_format}" {props.suffix}"'
-            xlsx_attributes.append(("num_format", num_format))
-        elif var_type == TYPE_PCT:
-            num_format = "0"
-            if props.dp:
-                num_format += "."
-                num_format += "0" * props.dp
-            num_format += "%"
-            xlsx_attributes.append(("num_format", num_format))
-        if props.indent_level is not None and not no_indent:
-            xlsx_attributes.append(("indent", props.indent_level))
-        return dict([a for a in xlsx_attributes if a[1] is not None])
-
     @api.model
     def to_css_style(self, props, no_indent=False):
         css_attributes = [
diff --git a/mis_builder/report/__init__.py b/mis_builder/report/__init__.py
index 6f814d60b..dbe8a08b8 100644
--- a/mis_builder/report/__init__.py
+++ b/mis_builder/report/__init__.py
@@ -2,4 +2,3 @@
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
 
 from . import mis_report_instance_qweb
-from . import mis_report_instance_xlsx
diff --git a/mis_builder/static/description/index.html b/mis_builder/static/description/index.html
index b43076c19..931fceef3 100644
--- a/mis_builder/static/description/index.html
+++ b/mis_builder/static/description/index.html
@@ -3,7 +3,7 @@
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="Docutils: https://docutils.sourceforge.io/" />
-<title>README.rst</title>
+<title>MIS Builder</title>
 <style type="text/css">
 
 /*
@@ -360,21 +360,16 @@
 </style>
 </head>
 <body>
-<div class="document">
+<div class="document" id="mis-builder">
+<h1 class="title">MIS Builder</h1>
 
-
-<a class="reference external image-reference" href="https://odoo-community.org/get-involved?utm_source=readme">
-<img alt="Odoo Community Association" src="https://odoo-community.org/readme-banner-image" />
-</a>
-<div class="section" id="mis-builder">
-<h1>MIS Builder</h1>
 <!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 !! This file is generated by oca-gen-addon-readme !!
 !! changes will be overwritten.                   !!
 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 !! source digest: sha256:87c3ef4da21a4d734c40c5b1e5cf7188cb5f02e25b7079abf9a0f1cdb3df78cf
 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
-<p><a class="reference external image-reference" href="https://odoo-community.org/page/development-status"><img alt="Production/Stable" src="https://img.shields.io/badge/maturity-Production%2FStable-green.png" /></a> <a class="reference external image-reference" href="http://www.gnu.org/licenses/agpl-3.0-standalone.html"><img alt="License: AGPL-3" src="https://img.shields.io/badge/license-AGPL--3-blue.png" /></a> <a class="reference external image-reference" href="https://github.com/OCA/mis-builder/tree/18.0/mis_builder"><img alt="OCA/mis-builder" src="https://img.shields.io/badge/github-OCA%2Fmis--builder-lightgray.png?logo=github" /></a> <a class="reference external image-reference" href="https://translation.odoo-community.org/projects/mis-builder-18-0/mis-builder-18-0-mis_builder"><img alt="Translate me on Weblate" src="https://img.shields.io/badge/weblate-Translate%20me-F47D42.png" /></a> <a class="reference external image-reference" href="https://runboat.odoo-community.org/builds?repo=OCA/mis-builder&amp;target_branch=18.0"><img alt="Try me on Runboat" src="https://img.shields.io/badge/runboat-Try%20me-875A7B.png" /></a></p>
+<p><a class="reference external image-reference" href="https://odoo-community.org/page/development-status"><img alt="Production/Stable" src="https://img.shields.io/badge/maturity-Production%2FStable-green.png" /></a> <a class="reference external image-reference" href="http://www.gnu.org/licenses/agpl-3.0-standalone.html"><img alt="License: AGPL-3" src="https://img.shields.io/badge/licence-AGPL--3-blue.png" /></a> <a class="reference external image-reference" href="https://github.com/OCA/mis-builder/tree/18.0/mis_builder"><img alt="OCA/mis-builder" src="https://img.shields.io/badge/github-OCA%2Fmis--builder-lightgray.png?logo=github" /></a> <a class="reference external image-reference" href="https://translation.odoo-community.org/projects/mis-builder-18-0/mis-builder-18-0-mis_builder"><img alt="Translate me on Weblate" src="https://img.shields.io/badge/weblate-Translate%20me-F47D42.png" /></a> <a class="reference external image-reference" href="https://runboat.odoo-community.org/builds?repo=OCA/mis-builder&amp;target_branch=18.0"><img alt="Try me on Runboat" src="https://img.shields.io/badge/runboat-Try%20me-875A7B.png" /></a></p>
 <p>This module allows you to build Management Information Systems
 dashboards. Such style of reports presents KPI in rows and time periods
 in columns. Reports mainly fetch data from account moves, but can also
@@ -446,7 +441,7 @@ <h1>MIS Builder</h1>
 </ul>
 </div>
 <div class="section" id="installation">
-<h2><a class="toc-backref" href="#toc-entry-1">Installation</a></h2>
+<h1><a class="toc-backref" href="#toc-entry-1">Installation</a></h1>
 <p>Your preferred way to install addons will work with MIS Builder.</p>
 <p>An easy way to install it with all its dependencies is using pip:</p>
 <ul class="simple">
@@ -456,7 +451,7 @@ <h2><a class="toc-backref" href="#toc-entry-1">Installation</a></h2>
 </ul>
 </div>
 <div class="section" id="usage">
-<h2><a class="toc-backref" href="#toc-entry-2">Usage</a></h2>
+<h1><a class="toc-backref" href="#toc-entry-2">Usage</a></h1>
 <p>To configure this module, you need to:</p>
 <ul class="simple">
 <li>Go to Accounting &gt; Configuration &gt; MIS Reporting &gt; MIS Report
@@ -485,7 +480,7 @@ <h2><a class="toc-backref" href="#toc-entry-2">Usage</a></h2>
 </ul>
 </div>
 <div class="section" id="development">
-<h2><a class="toc-backref" href="#toc-entry-3">Development</a></h2>
+<h1><a class="toc-backref" href="#toc-entry-3">Development</a></h1>
 <p>A typical extension is to provide a mechanism to filter reports on
 analytic dimensions or operational units. To implement this, you can
 override _get_additional_move_line_filter and _get_additional_filter
@@ -495,7 +490,7 @@ <h2><a class="toc-backref" href="#toc-entry-3">Development</a></h2>
 different columns to show different analytic accounts.</p>
 </div>
 <div class="section" id="known-issues-roadmap">
-<h2><a class="toc-backref" href="#toc-entry-4">Known issues / Roadmap</a></h2>
+<h1><a class="toc-backref" href="#toc-entry-4">Known issues / Roadmap</a></h1>
 <p>The mis_builder
 <a class="reference external" href="https://github.com/OCA/mis-builder/issues?q=is%3Aopen+is%3Aissue+label%3Aenhancement">roadmap</a>
 and <a class="reference external" href="https://github.com/OCA/mis-builder/issues?q=is%3Aopen+is%3Aissue+label%3Abug">known
@@ -503,11 +498,11 @@ <h2><a class="toc-backref" href="#toc-entry-4">Known issues / Roadmap</a></h2>
 can be found on GitHub.</p>
 </div>
 <div class="section" id="changelog">
-<h2><a class="toc-backref" href="#toc-entry-5">Changelog</a></h2>
+<h1><a class="toc-backref" href="#toc-entry-5">Changelog</a></h1>
 <div class="section" id="section-1">
-<h3><a class="toc-backref" href="#toc-entry-6">18.0.1.7.2 (2025-10-29)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-6">18.0.1.7.2 (2025-10-29)</a></h2>
 <div class="section" id="bugfixes">
-<h4><a class="toc-backref" href="#toc-entry-7">Bugfixes</a></h4>
+<h3><a class="toc-backref" href="#toc-entry-7">Bugfixes</a></h3>
 <ul class="simple">
 <li>Fix computation of currency conversion rates
 (<a class="reference external" href="https://github.com/OCA/mis-builder/issues/737">#737</a>)</li>
@@ -515,9 +510,9 @@ <h4><a class="toc-backref" href="#toc-entry-7">Bugfixes</a></h4>
 </div>
 </div>
 <div class="section" id="section-2">
-<h3><a class="toc-backref" href="#toc-entry-8">18.0.1.5.0 (2025-10-27)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-8">18.0.1.5.0 (2025-10-27)</a></h2>
 <div class="section" id="features">
-<h4><a class="toc-backref" href="#toc-entry-9">Features</a></h4>
+<h3><a class="toc-backref" href="#toc-entry-9">Features</a></h3>
 <ul class="simple">
 <li>Introduction of annotations on report cells. Added notes will be
 pinted when exporting to PDF and Excel.
@@ -526,9 +521,9 @@ <h4><a class="toc-backref" href="#toc-entry-9">Features</a></h4>
 </div>
 </div>
 <div class="section" id="section-3">
-<h3><a class="toc-backref" href="#toc-entry-10">17.0.1.0.2 (2024-11-11)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-10">17.0.1.0.2 (2024-11-11)</a></h2>
 <div class="section" id="features-1">
-<h4><a class="toc-backref" href="#toc-entry-11">Features</a></h4>
+<h3><a class="toc-backref" href="#toc-entry-11">Features</a></h3>
 <ul class="simple">
 <li>Add support for branch companies.
 (<a class="reference external" href="https://github.com/OCA/mis-builder/issues/648">#648</a>)</li>
@@ -536,7 +531,7 @@ <h4><a class="toc-backref" href="#toc-entry-11">Features</a></h4>
 </div>
 </div>
 <div class="section" id="section-4">
-<h3><a class="toc-backref" href="#toc-entry-12">16.0.5.1.9 (2024-02-09)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-12">16.0.5.1.9 (2024-02-09)</a></h2>
 <p><strong>Bugfixes</strong></p>
 <ul class="simple">
 <li>Restore compatibility with python 3.9
@@ -544,7 +539,7 @@ <h3><a class="toc-backref" href="#toc-entry-12">16.0.5.1.9 (2024-02-09)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-5">
-<h3><a class="toc-backref" href="#toc-entry-13">16.0.5.1.8 (2024-02-08)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-13">16.0.5.1.8 (2024-02-08)</a></h2>
 <p><strong>Bugfixes</strong></p>
 <ul class="simple">
 <li>Resolve a permission issue when creating report periods with a user
@@ -553,7 +548,7 @@ <h3><a class="toc-backref" href="#toc-entry-13">16.0.5.1.8 (2024-02-08)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-6">
-<h3><a class="toc-backref" href="#toc-entry-14">16.0.5.1.0 (2023-04-04)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-14">16.0.5.1.0 (2023-04-04)</a></h2>
 <p><strong>Features</strong></p>
 <ul class="simple">
 <li>Improve UX by adding the option to edit the pivot date directly on the
@@ -561,7 +556,7 @@ <h3><a class="toc-backref" href="#toc-entry-14">16.0.5.1.0 (2023-04-04)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-7">
-<h3><a class="toc-backref" href="#toc-entry-15">16.0.5.0.0 (2023-04-01)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-15">16.0.5.0.0 (2023-04-01)</a></h2>
 <p><strong>Features</strong></p>
 <ul class="simple">
 <li>Migration to 16.0<ul>
@@ -601,7 +596,7 @@ <h3><a class="toc-backref" href="#toc-entry-15">16.0.5.0.0 (2023-04-01)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-8">
-<h3><a class="toc-backref" href="#toc-entry-16">15.0.4.0.5 (2022-07-19)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-16">15.0.4.0.5 (2022-07-19)</a></h2>
 <p><strong>Bugfixes</strong></p>
 <ul class="simple">
 <li>Support users without timezone.
@@ -609,7 +604,7 @@ <h3><a class="toc-backref" href="#toc-entry-16">15.0.4.0.5 (2022-07-19)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-9">
-<h3><a class="toc-backref" href="#toc-entry-17">15.0.4.0.4 (2022-07-19)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-17">15.0.4.0.4 (2022-07-19)</a></h2>
 <p><strong>Bugfixes</strong></p>
 <ul class="simple">
 <li>Allow deleting a report that has subreports.
@@ -617,7 +612,7 @@ <h3><a class="toc-backref" href="#toc-entry-17">15.0.4.0.4 (2022-07-19)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-10">
-<h3><a class="toc-backref" href="#toc-entry-18">15.0.4.0.2 (2022-02-16)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-18">15.0.4.0.2 (2022-02-16)</a></h2>
 <p><strong>Bugfixes</strong></p>
 <ul class="simple">
 <li>Fix access right issue when clicking the “Save” button on a MIS Report
@@ -626,7 +621,7 @@ <h3><a class="toc-backref" href="#toc-entry-18">15.0.4.0.2 (2022-02-16)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-11">
-<h3><a class="toc-backref" href="#toc-entry-19">14.0.4.0.0 (2022-01-08)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-19">14.0.4.0.0 (2022-01-08)</a></h2>
 <p><strong>Features</strong></p>
 <ul class="simple">
 <li>Remove various field size limits.
@@ -658,7 +653,7 @@ <h3><a class="toc-backref" href="#toc-entry-19">14.0.4.0.0 (2022-01-08)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-12">
-<h3><a class="toc-backref" href="#toc-entry-20">14.0.3.6.7 (2021-06-02)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-20">14.0.3.6.7 (2021-06-02)</a></h2>
 <p><strong>Bugfixes</strong></p>
 <ul class="simple">
 <li>When on a MIS Report Instance, if you wanted to generate a new line of
@@ -671,7 +666,7 @@ <h3><a class="toc-backref" href="#toc-entry-20">14.0.3.6.7 (2021-06-02)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-13">
-<h3><a class="toc-backref" href="#toc-entry-21">14.0.3.6.6 (2021-04-23)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-21">14.0.3.6.6 (2021-04-23)</a></h2>
 <p><strong>Bugfixes</strong></p>
 <ul class="simple">
 <li>Fix drilldown action name when the account model has been customized.
@@ -679,7 +674,7 @@ <h3><a class="toc-backref" href="#toc-entry-21">14.0.3.6.6 (2021-04-23)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-14">
-<h3><a class="toc-backref" href="#toc-entry-22">14.0.3.6.5 (2021-04-23)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-22">14.0.3.6.5 (2021-04-23)</a></h2>
 <p><strong>Bugfixes</strong></p>
 <ul class="simple">
 <li>While duplicating a MIS report instance, comparison columns are
@@ -689,7 +684,7 @@ <h3><a class="toc-backref" href="#toc-entry-22">14.0.3.6.5 (2021-04-23)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-15">
-<h3><a class="toc-backref" href="#toc-entry-23">14.0.3.6.4 (2021-04-06)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-23">14.0.3.6.4 (2021-04-06)</a></h2>
 <p><strong>Features</strong></p>
 <ul class="simple">
 <li>The drilldown action name displayed on the breadcrumb has been
@@ -702,7 +697,7 @@ <h3><a class="toc-backref" href="#toc-entry-23">14.0.3.6.4 (2021-04-06)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-16">
-<h3><a class="toc-backref" href="#toc-entry-24">13.0.3.6.3 (2020-08-28)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-24">13.0.3.6.3 (2020-08-28)</a></h2>
 <p><strong>Bugfixes</strong></p>
 <ul class="simple">
 <li>Having a “Compare columns” added on a KPI with an associated style
@@ -717,7 +712,7 @@ <h3><a class="toc-backref" href="#toc-entry-24">13.0.3.6.3 (2020-08-28)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-17">
-<h3><a class="toc-backref" href="#toc-entry-25">13.0.3.6.2 (2020-04-22)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-25">13.0.3.6.2 (2020-04-22)</a></h2>
 <p><strong>Bugfixes</strong></p>
 <ul class="simple">
 <li>The “Settings” button is now displayed for users with the “Show full
@@ -726,7 +721,7 @@ <h3><a class="toc-backref" href="#toc-entry-25">13.0.3.6.2 (2020-04-22)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-18">
-<h3><a class="toc-backref" href="#toc-entry-26">13.0.3.6.1 (2020-04-22)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-26">13.0.3.6.1 (2020-04-22)</a></h2>
 <p><strong>Bugfixes</strong></p>
 <ul class="simple">
 <li>Fix <tt class="docutils literal">TypeError: 'module' object is not iterable</tt> when using budgets
@@ -734,7 +729,7 @@ <h3><a class="toc-backref" href="#toc-entry-26">13.0.3.6.1 (2020-04-22)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-19">
-<h3><a class="toc-backref" href="#toc-entry-27">13.0.3.6.0 (2020-03-28)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-27">13.0.3.6.0 (2020-03-28)</a></h2>
 <p><strong>Features</strong></p>
 <ul class="simple">
 <li>Add column-level filters on analytic account and analytic tags. These
@@ -753,11 +748,11 @@ <h3><a class="toc-backref" href="#toc-entry-27">13.0.3.6.0 (2020-03-28)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-20">
-<h3><a class="toc-backref" href="#toc-entry-28">13.0.3.5.0 (2020-01-??)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-28">13.0.3.5.0 (2020-01-??)</a></h2>
 <p>Migration to odoo 13.0.</p>
 </div>
 <div class="section" id="section-21">
-<h3><a class="toc-backref" href="#toc-entry-29">12.0.3.5.0 (2019-10-26)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-29">12.0.3.5.0 (2019-10-26)</a></h2>
 <p><strong>Features</strong></p>
 <ul class="simple">
 <li>The <tt class="docutils literal">account_id</tt> field of the model selected in ‘Move lines source’
@@ -797,7 +792,7 @@ <h3><a class="toc-backref" href="#toc-entry-29">12.0.3.5.0 (2019-10-26)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-22">
-<h3><a class="toc-backref" href="#toc-entry-30">12.0.3.4.0 (2019-07-09)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-30">12.0.3.4.0 (2019-07-09)</a></h2>
 <p><strong>Features</strong></p>
 <ul class="simple">
 <li>New year-to-date mode for defining periods.
@@ -822,7 +817,7 @@ <h3><a class="toc-backref" href="#toc-entry-30">12.0.3.4.0 (2019-07-09)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-23">
-<h3><a class="toc-backref" href="#toc-entry-31">12.0.3.3.0 (2019-01-26)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-31">12.0.3.3.0 (2019-01-26)</a></h2>
 <p><strong>Features</strong></p>
 <p><em>Dynamic analytic filters in report preview are not yet available in 11,
 this requires an update to the JS widget that proved difficult to
@@ -873,7 +868,7 @@ <h3><a class="toc-backref" href="#toc-entry-31">12.0.3.3.0 (2019-01-26)</a></h3>
 <tt class="docutils literal">analytic_account_id</tt> field.</p>
 </div>
 <div class="section" id="section-24">
-<h3><a class="toc-backref" href="#toc-entry-32">11.0.3.2.2 (2018-06-30)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-32">11.0.3.2.2 (2018-06-30)</a></h2>
 <ul class="simple">
 <li>[FIX] Fix bug in company_default_get call returning id instead of
 recordset (<a class="reference external" href="https://github.com/OCA/mis-builder/pull/103">#103</a>)</li>
@@ -883,7 +878,7 @@ <h3><a class="toc-backref" href="#toc-entry-32">11.0.3.2.2 (2018-06-30)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-25">
-<h3><a class="toc-backref" href="#toc-entry-33">11.0.3.2.1 (2018-05-29)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-33">11.0.3.2.1 (2018-05-29)</a></h2>
 <ul class="simple">
 <li>[FIX] Missing comparison operator for AccountingNone leading to errors
 in pbal computations
@@ -891,7 +886,7 @@ <h3><a class="toc-backref" href="#toc-entry-33">11.0.3.2.1 (2018-05-29)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-26">
-<h3><a class="toc-backref" href="#toc-entry-34">10.0.3.2.0 (2018-05-02)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-34">10.0.3.2.0 (2018-05-02)</a></h2>
 <ul class="simple">
 <li>[FIX] make subkpi ordering deterministic
 (<a class="reference external" href="https://github.com/OCA/mis-builder/issues/71">#71</a>)</li>
@@ -906,12 +901,12 @@ <h3><a class="toc-backref" href="#toc-entry-34">10.0.3.2.0 (2018-05-02)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-27">
-<h3><a class="toc-backref" href="#toc-entry-35">11.0.3.1.2 (2018-02-04)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-35">11.0.3.1.2 (2018-02-04)</a></h2>
 <p>Migration to Odoo 11. No new feature.
 (<a class="reference external" href="https://github.com/OCA/mis-builder/pull/67">#67</a>)</p>
 </div>
 <div class="section" id="section-28">
-<h3><a class="toc-backref" href="#toc-entry-36">10.0.3.1.1 (2017-11-14)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-36">10.0.3.1.1 (2017-11-14)</a></h2>
 <p>New features:</p>
 <ul class="simple">
 <li>[ADD] month and year relative periods, easier to use than date ranges
@@ -949,7 +944,7 @@ <h3><a class="toc-backref" href="#toc-entry-36">10.0.3.1.1 (2017-11-14)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-29">
-<h3><a class="toc-backref" href="#toc-entry-37">10.0.3.0.4 (2017-10-14)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-37">10.0.3.0.4 (2017-10-14)</a></h2>
 <p>Bug fix:</p>
 <ul class="simple">
 <li>[FIX] issue with initial balance rounding.
@@ -957,7 +952,7 @@ <h3><a class="toc-backref" href="#toc-entry-37">10.0.3.0.4 (2017-10-14)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-30">
-<h3><a class="toc-backref" href="#toc-entry-38">10.0.3.0.3 (2017-10-03)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-38">10.0.3.0.3 (2017-10-03)</a></h2>
 <p>Bug fix:</p>
 <ul class="simple">
 <li>[FIX] fix error saving KPI on newly created reports.
@@ -965,7 +960,7 @@ <h3><a class="toc-backref" href="#toc-entry-38">10.0.3.0.3 (2017-10-03)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-31">
-<h3><a class="toc-backref" href="#toc-entry-39">10.0.3.0.2 (2017-10-01)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-39">10.0.3.0.2 (2017-10-01)</a></h2>
 <p>New features:</p>
 <ul class="simple">
 <li>[ADD] Alternative move line source per report column. This makes mis
@@ -1010,7 +1005,7 @@ <h3><a class="toc-backref" href="#toc-entry-39">10.0.3.0.2 (2017-10-01)</a></h3>
 </ul>
 </div>
 <div class="section" id="unreleased">
-<h3><a class="toc-backref" href="#toc-entry-40">10.0.2.0.3 (unreleased)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-40">10.0.2.0.3 (unreleased)</a></h2>
 <ul class="simple">
 <li>[IMP] more robust behaviour in presence of missing expressions</li>
 <li>[FIX] indent style</li>
@@ -1023,7 +1018,7 @@ <h3><a class="toc-backref" href="#toc-entry-40">10.0.2.0.3 (unreleased)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-32">
-<h3><a class="toc-backref" href="#toc-entry-41">9.0.2.0.2 (2016-09-27)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-41">9.0.2.0.2 (2016-09-27)</a></h2>
 <ul class="simple">
 <li>[IMP] Add refresh button in mis report preview.</li>
 <li>[IMP] Widget code changes to allow to add fields in the widget more
@@ -1031,7 +1026,7 @@ <h3><a class="toc-backref" href="#toc-entry-41">9.0.2.0.2 (2016-09-27)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-33">
-<h3><a class="toc-backref" href="#toc-entry-42">9.0.2.0.1 (2016-05-26)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-42">9.0.2.0.1 (2016-05-26)</a></h2>
 <ul class="simple">
 <li>[IMP] remove unused argument in declare_and_compute_period() for a
 cleaner API. This is a breaking API changing merged in urgency before
@@ -1039,7 +1034,7 @@ <h3><a class="toc-backref" href="#toc-entry-42">9.0.2.0.1 (2016-05-26)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-34">
-<h3><a class="toc-backref" href="#toc-entry-43">9.0.2.0.0 (2016-05-24)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-43">9.0.2.0.0 (2016-05-24)</a></h2>
 <p>Part of the work for this release has been done at the Sorrento sprint
 April 26-29, 2016. The rest (ie a major refactoring) has been done in
 the weeks after.</p>
@@ -1088,7 +1083,7 @@ <h3><a class="toc-backref" href="#toc-entry-43">9.0.2.0.0 (2016-05-24)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-35">
-<h3><a class="toc-backref" href="#toc-entry-44">8.0.1.0.0 (2016-04-27)</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-44">8.0.1.0.0 (2016-04-27)</a></h2>
 <ul class="simple">
 <li>The copy of a MIS Report Instance now copies period.
 <a class="reference external" href="https://github.com/OCA/account-financial-reporting/pull/181">https://github.com/OCA/account-financial-reporting/pull/181</a></li>
@@ -1113,12 +1108,12 @@ <h3><a class="toc-backref" href="#toc-entry-44">8.0.1.0.0 (2016-04-27)</a></h3>
 </ul>
 </div>
 <div class="section" id="section-36">
-<h3><a class="toc-backref" href="#toc-entry-45">8.0.0.2.0</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-45">8.0.0.2.0</a></h2>
 <p>Pre-history. Or rather, you need to look at the git log.</p>
 </div>
 </div>
 <div class="section" id="bug-tracker">
-<h2><a class="toc-backref" href="#toc-entry-46">Bug Tracker</a></h2>
+<h1><a class="toc-backref" href="#toc-entry-46">Bug Tracker</a></h1>
 <p>Bugs are tracked on <a class="reference external" href="https://github.com/OCA/mis-builder/issues">GitHub Issues</a>.
 In case of trouble, please check there if your issue has already been reported.
 If you spotted it first, help us to smash it by providing a detailed and welcomed
@@ -1126,15 +1121,15 @@ <h2><a class="toc-backref" href="#toc-entry-46">Bug Tracker</a></h2>
 <p>Do not contact contributors directly about support or help with technical issues.</p>
 </div>
 <div class="section" id="credits">
-<h2><a class="toc-backref" href="#toc-entry-47">Credits</a></h2>
+<h1><a class="toc-backref" href="#toc-entry-47">Credits</a></h1>
 <div class="section" id="authors">
-<h3><a class="toc-backref" href="#toc-entry-48">Authors</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-48">Authors</a></h2>
 <ul class="simple">
 <li>ACSONE SA/NV</li>
 </ul>
 </div>
 <div class="section" id="contributors">
-<h3><a class="toc-backref" href="#toc-entry-49">Contributors</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-49">Contributors</a></h2>
 <ul class="simple">
 <li>Stéphane Bidoul &lt;<a class="reference external" href="mailto:stephane.bidoul&#64;acsone.eu">stephane.bidoul&#64;acsone.eu</a>&gt;</li>
 <li>Laetitia Gangloff &lt;<a class="reference external" href="mailto:laetitia.gangloff&#64;acsone.eu">laetitia.gangloff&#64;acsone.eu</a>&gt;</li>
@@ -1169,7 +1164,7 @@ <h3><a class="toc-backref" href="#toc-entry-49">Contributors</a></h3>
 </ul>
 </div>
 <div class="section" id="maintainers">
-<h3><a class="toc-backref" href="#toc-entry-50">Maintainers</a></h3>
+<h2><a class="toc-backref" href="#toc-entry-50">Maintainers</a></h2>
 <p>This module is maintained by the OCA.</p>
 <a class="reference external image-reference" href="https://odoo-community.org">
 <img alt="Odoo Community Association" src="https://odoo-community.org/logo.png" />
@@ -1184,6 +1179,5 @@ <h3><a class="toc-backref" href="#toc-entry-50">Maintainers</a></h3>
 </div>
 </div>
 </div>
-</div>
 </body>
 </html>
diff --git a/mis_builder/static/src/components/mis_report_widget.esm.js b/mis_builder/static/src/components/mis_report_widget.esm.js
index c00d6177a..d8a07e0bb 100644
--- a/mis_builder/static/src/components/mis_report_widget.esm.js
+++ b/mis_builder/static/src/components/mis_report_widget.esm.js
@@ -168,16 +168,6 @@ export class MisReportWidget extends Component {
         this.action.doAction(action);
     }
 
-    async exportXls() {
-        const action = await this.orm.call(
-            "mis.report.instance",
-            "export_xls",
-            [this._instanceId()],
-            {context: this.context}
-        );
-        this.action.doAction(action);
-    }
-
     async displaySettings() {
         const action = await this.orm.call(
             "mis.report.instance",
diff --git a/mis_builder/static/src/components/mis_report_widget.xml b/mis_builder/static/src/components/mis_report_widget.xml
index 0f55c7932..99319806a 100644
--- a/mis_builder/static/src/components/mis_report_widget.xml
+++ b/mis_builder/static/src/components/mis_report_widget.xml
@@ -32,8 +32,6 @@
                                     <span class="fa fa-refresh" /> Refresh </button>
                                 <button t-on-click="printPdf" class="btn">
                                     <span class="fa fa-print" /> Print </button>
-                                <button t-on-click="exportXls" class="btn">
-                                    <span class="fa fa-download" /> Export </button>
                                 <button
                                     t-on-click="displaySettings"
                                     t-if="widget_show_settings_button"
diff --git a/mis_builder/tests/test_mis_report_instance.py b/mis_builder/tests/test_mis_report_instance.py
index 7177e65dd..a507d847b 100644
--- a/mis_builder/tests/test_mis_report_instance.py
+++ b/mis_builder/tests/test_mis_report_instance.py
@@ -500,22 +500,6 @@ def test_qweb(self):
             report_type="qweb-pdf",
         )
 
-    def test_xlsx(self):
-        self.report_instance.export_xls()  # get action
-        with self.assertLogs("odoo.tools.test_reports", level="WARNING") as log_catcher:
-            test_reports.try_report(
-                self.env.cr,
-                self.env.uid,
-                "mis_builder.mis_report_instance_xlsx",
-                [self.report_instance.id],
-                report_type="xlsx",
-            )
-        self.assertIn(
-            'Report mis_builder.mis_report_instance_xlsx produced a "xlsx" chunk, '
-            "cannot examine it",
-            log_catcher.output[0],
-        )
-
     def test_get_kpis_by_account_id(self):
         account_ids = (
             self.env["account.account"]
diff --git a/mis_builder/tests/test_render.py b/mis_builder/tests/test_render.py
index 536d205e8..26d8b42f8 100644
--- a/mis_builder/tests/test_render.py
+++ b/mis_builder/tests/test_render.py
@@ -249,78 +249,6 @@ def test_css(self):
             "background-color: #0000FF",
         )
 
-    def test_xslx(self):
-        self.style.color_inherit = False
-        self.style.color = "#FF0000"
-        self.style.background_color_inherit = False
-        self.style.background_color = "#0000FF"
-        self.style.suffix_inherit = False
-        self.style.suffix = "s"
-        self.style.prefix_inherit = False
-        self.style.prefix = "p"
-        self.style.dp_inherit = False
-        self.style.dp = 2
-        self.style.font_style_inherit = False
-        self.style.font_style = "italic"
-        self.style.font_weight_inherit = False
-        self.style.font_weight = "bold"
-        self.style.font_size_inherit = False
-        self.style.font_size = "small"
-        self.style.indent_level_inherit = False
-        self.style.indent_level = 2
-        style_props = self.style_obj.merge([self.style])
-        xlsx = self.style_obj.to_xlsx_style(TYPE_NUM, style_props)
-        self.assertEqual(
-            xlsx,
-            {
-                "italic": True,
-                "bold": True,
-                "font_size": 9,
-                "font_color": "#FF0000",
-                "bg_color": "#0000FF",
-                "num_format": '"p "#,##0.00" s"',
-                "indent": 2,
-            },
-        )
-        xlsx = self.style_obj.to_xlsx_style(TYPE_NUM, style_props, no_indent=True)
-        self.assertEqual(
-            xlsx,
-            {
-                "italic": True,
-                "bold": True,
-                "font_size": 9,
-                "font_color": "#FF0000",
-                "bg_color": "#0000FF",
-                "num_format": '"p "#,##0.00" s"',
-            },
-        )
-        # percent type ignore prefix and suffix
-        xlsx = self.style_obj.to_xlsx_style(TYPE_PCT, style_props, no_indent=True)
-        self.assertEqual(
-            xlsx,
-            {
-                "italic": True,
-                "bold": True,
-                "font_size": 9,
-                "font_color": "#FF0000",
-                "bg_color": "#0000FF",
-                "num_format": "0.00%",
-            },
-        )
-
-        # str type have no num_format style
-        xlsx = self.style_obj.to_xlsx_style(TYPE_STR, style_props, no_indent=True)
-        self.assertEqual(
-            xlsx,
-            {
-                "italic": True,
-                "bold": True,
-                "font_size": 9,
-                "font_color": "#FF0000",
-                "bg_color": "#0000FF",
-            },
-        )
-
     def test_description(self):
         self.assertEqual(self.style.description.unescape(), "")
 
diff --git a/mis_builder/views/mis_report_instance.xml b/mis_builder/views/mis_report_instance.xml
index d1f2c7df9..be1159488 100644
--- a/mis_builder/views/mis_report_instance.xml
+++ b/mis_builder/views/mis_report_instance.xml
@@ -35,12 +35,6 @@
                     icon="fa-search"
                 />
                 <button type="object" name="print_pdf" string="Print" icon="fa-print" />
-                <button
-                    type="object"
-                    name="export_xls"
-                    string="Export"
-                    icon="fa-download"
-                />
                 <field name="name" />
                 <field name="report_id" string="Template" />
                 <field name="company_id" groups="base.group_multi_company" />
@@ -74,13 +68,6 @@
                             icon="fa-print"
                             class="btn"
                         />
-                        <button
-                            type="object"
-                            name="export_xls"
-                            string="Export"
-                            icon="fa-download"
-                            class="btn"
-                        />
                         <button
                             type="action"
                             name="%(mis_report_instance_add_to_dashboard_action)d"
@@ -272,13 +259,6 @@
                     string="Print"
                     icon="fa-print"
                     class="btn"
-                />
-                    <button
-                    type="object"
-                    name="export_xls"
-                    string="Export"
-                    icon="fa-download"
-                    class="btn"
                 /> or <button string="Cancel" class="oe_link" special="cancel" />
                 </footer>
             </sheet>
diff --git a/mis_builder_report_xlsx/README.rst b/mis_builder_report_xlsx/README.rst
new file mode 100644
index 000000000..47db3aca3
--- /dev/null
+++ b/mis_builder_report_xlsx/README.rst
@@ -0,0 +1,112 @@
+=========================
+MIS Builder - Report XLSX
+=========================
+
+.. 
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! This file is generated by oca-gen-addon-readme !!
+   !! changes will be overwritten.                   !!
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! source digest: sha256:5c01f05913a972ff6c782fea6e1fe238222c3296f4d7ae10e4f2f86b2cf11fbe
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+.. |badge1| image:: https://img.shields.io/badge/maturity-Beta-yellow.png
+    :target: https://odoo-community.org/page/development-status
+    :alt: Beta
+.. |badge2| image:: https://img.shields.io/badge/licence-AGPL--3-blue.png
+    :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
+    :alt: License: AGPL-3
+.. |badge3| image:: https://img.shields.io/badge/github-OCA%2Fmis--builder-lightgray.png?logo=github
+    :target: https://github.com/OCA/mis-builder/tree/18.0/mis_builder_report_xlsx
+    :alt: OCA/mis-builder
+.. |badge4| image:: https://img.shields.io/badge/weblate-Translate%20me-F47D42.png
+    :target: https://translation.odoo-community.org/projects/mis-builder-18-0/mis-builder-18-0-mis_builder_report_xlsx
+    :alt: Translate me on Weblate
+.. |badge5| image:: https://img.shields.io/badge/runboat-Try%20me-875A7B.png
+    :target: https://runboat.odoo-community.org/builds?repo=OCA/mis-builder&target_branch=18.0
+    :alt: Try me on Runboat
+
+|badge1| |badge2| |badge3| |badge4| |badge5|
+
+This module improves the MIS Reports modules, allowing to downloads MIS
+Reports in XLSX format.
+
+**Table of contents**
+
+.. contents::
+   :local:
+
+Usage
+=====
+
+- Go to MIS Reports list and form views.
+- Click on 'Export' Button to download your XLSX file.
+
+|image|
+
+- In the same way, a button is present in the 'preview' form view of
+  your MIS reports.
+
+|image1|
+
+.. |image| image:: https://raw.githubusercontent.com/OCA/mis-builder/18.0/mis_builder_report_xlsx/static/description/mis_report_instance_list.png
+.. |image1| image:: https://raw.githubusercontent.com/OCA/mis-builder/18.0/mis_builder_report_xlsx/static/description/mis_report_instance_preview_form.png
+
+Known issues / Roadmap
+======================
+
+The mis_builder
+`roadmap <https://github.com/OCA/mis-builder/issues?q=is%3Aopen+is%3Aissue+label%3Aenhancement>`__
+and `known
+issues <https://github.com/OCA/mis-builder/issues?q=is%3Aopen+is%3Aissue+label%3Abug>`__
+can be found on github.
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues <https://github.com/OCA/mis-builder/issues>`_.
+In case of trouble, please check there if your issue has already been reported.
+If you spotted it first, help us to smash it by providing a detailed and welcomed
+`feedback <https://github.com/OCA/mis-builder/issues/new?body=module:%20mis_builder_report_xlsx%0Aversion:%2018.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
+
+Do not contact contributors directly about support or help with technical issues.
+
+Credits
+=======
+
+Authors
+-------
+
+* ACSONE SA/NV
+* GRAP
+
+Contributors
+------------
+
+- Stéphane Bidoul <stephane.bidoul@acsone.eu>
+- Sylvain LE GAL
+
+Maintainers
+-----------
+
+This module is maintained by the OCA.
+
+.. image:: https://odoo-community.org/logo.png
+   :alt: Odoo Community Association
+   :target: https://odoo-community.org
+
+OCA, or the Odoo Community Association, is a nonprofit organization whose
+mission is to support the collaborative development of Odoo features and
+promote its widespread use.
+
+.. |maintainer-sbidoul| image:: https://github.com/sbidoul.png?size=40px
+    :target: https://github.com/sbidoul
+    :alt: sbidoul
+
+Current `maintainer <https://odoo-community.org/page/maintainer-role>`__:
+
+|maintainer-sbidoul| 
+
+This module is part of the `OCA/mis-builder <https://github.com/OCA/mis-builder/tree/18.0/mis_builder_report_xlsx>`_ project on GitHub.
+
+You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.
diff --git a/mis_builder_report_xlsx/__init__.py b/mis_builder_report_xlsx/__init__.py
new file mode 100644
index 000000000..bf588bc8b
--- /dev/null
+++ b/mis_builder_report_xlsx/__init__.py
@@ -0,0 +1,2 @@
+from . import models
+from . import report
diff --git a/mis_builder_report_xlsx/__manifest__.py b/mis_builder_report_xlsx/__manifest__.py
new file mode 100644
index 000000000..84aa516e1
--- /dev/null
+++ b/mis_builder_report_xlsx/__manifest__.py
@@ -0,0 +1,25 @@
+# Copyright 2017-2018 ACSONE SA/NV
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+{
+    "name": "MIS Builder - Report XLSX",
+    "summary": "Export MIS Reports in XLSX format",
+    "version": "18.0.1.0.0",
+    "license": "AGPL-3",
+    "author": "ACSONE SA/NV, GRAP, Odoo Community Association (OCA)",
+    "website": "https://github.com/OCA/mis-builder",
+    "depends": ["mis_builder", "report_xlsx"],
+    "data": [
+        "report/mis_report_instance_xlsx.xml",
+        "views/mis_report_instance.xml",
+    ],
+    "assets": {
+        "web.assets_backend": [
+            "mis_builder_report_xlsx/static/src/*/**.js",
+            "mis_builder_report_xlsx/static/src/*/**.xml",
+        ]
+    },
+    "installable": True,
+    "auto_install": True,
+    "maintainers": ["sbidoul"],
+}
diff --git a/mis_builder_report_xlsx/models/__init__.py b/mis_builder_report_xlsx/models/__init__.py
new file mode 100644
index 000000000..d2b0b0fcf
--- /dev/null
+++ b/mis_builder_report_xlsx/models/__init__.py
@@ -0,0 +1,2 @@
+from . import mis_report_style
+from . import mis_report_instance
diff --git a/mis_builder_report_xlsx/models/mis_report_instance.py b/mis_builder_report_xlsx/models/mis_report_instance.py
new file mode 100644
index 000000000..0c5bc1a15
--- /dev/null
+++ b/mis_builder_report_xlsx/models/mis_report_instance.py
@@ -0,0 +1,22 @@
+# Copyright 2014 ACSONE SA/NV (<http://acsone.eu>)
+# Copyright 2020 CorporateHub (https://corporatehub.eu)
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
+
+import logging
+
+from odoo import models
+
+_logger = logging.getLogger(__name__)
+
+
+class MisReportInstance(models.Model):
+    _inherit = "mis.report.instance"
+
+    def export_xls(self):
+        return self.export_xlsx()
+
+    def export_xlsx(self):
+        self.ensure_one()
+        return self.env.ref("mis_builder_report_xlsx.xls_export").report_action(
+            self, data=dict(dummy=True)
+        )  # required to propagate context
diff --git a/mis_builder_report_xlsx/models/mis_report_style.py b/mis_builder_report_xlsx/models/mis_report_style.py
new file mode 100644
index 000000000..93d1b3102
--- /dev/null
+++ b/mis_builder_report_xlsx/models/mis_report_style.py
@@ -0,0 +1,52 @@
+# Copyright 2016 Therp BV (<http://therp.nl>)
+# Copyright 2016 ACSONE SA/NV (<http://acsone.eu>)
+# Copyright 2020 CorporateHub (https://corporatehub.eu)
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
+
+from odoo import api, models
+
+from odoo.addons.mis_builder.models.mis_report_style import TYPE_NUM, TYPE_PCT
+
+
+class MisReportStyle(models.Model):
+    _inherit = "mis.report.style"
+
+    _font_size_to_xlsx_size = {
+        "medium": 11,
+        "xx-small": 5,
+        "x-small": 7,
+        "small": 9,
+        "large": 13,
+        "x-large": 15,
+        "xx-large": 17,
+    }
+
+    @api.model
+    def to_xlsx_style(self, var_type, props, no_indent=False):
+        xlsx_attributes = [
+            ("italic", props.font_style == "italic"),
+            ("bold", props.font_weight == "bold"),
+            ("font_size", self._font_size_to_xlsx_size.get(props.font_size, 11)),
+            ("font_color", props.color),
+            ("bg_color", props.background_color),
+        ]
+        if var_type == TYPE_NUM:
+            num_format = "#,##0"
+            if props.dp:
+                num_format += "."
+                num_format += "0" * props.dp
+            if props.prefix:
+                num_format = f'"{props.prefix} "{num_format}'
+            if props.suffix:
+                num_format = f'{num_format}" {props.suffix}"'
+            xlsx_attributes.append(("num_format", num_format))
+        elif var_type == TYPE_PCT:
+            num_format = "0"
+            if props.dp:
+                num_format += "."
+                num_format += "0" * props.dp
+            num_format += "%"
+            xlsx_attributes.append(("num_format", num_format))
+        if props.indent_level is not None and not no_indent:
+            xlsx_attributes.append(("indent", props.indent_level))
+        return dict([a for a in xlsx_attributes if a[1] is not None])
diff --git a/mis_builder_report_xlsx/pyproject.toml b/mis_builder_report_xlsx/pyproject.toml
new file mode 100644
index 000000000..4231d0ccc
--- /dev/null
+++ b/mis_builder_report_xlsx/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"
diff --git a/mis_builder_report_xlsx/readme/CONTRIBUTORS.md b/mis_builder_report_xlsx/readme/CONTRIBUTORS.md
new file mode 100644
index 000000000..e9957be50
--- /dev/null
+++ b/mis_builder_report_xlsx/readme/CONTRIBUTORS.md
@@ -0,0 +1,2 @@
+- Stéphane Bidoul \<<stephane.bidoul@acsone.eu>\>
+- Sylvain LE GAL
diff --git a/mis_builder_report_xlsx/readme/DESCRIPTION.md b/mis_builder_report_xlsx/readme/DESCRIPTION.md
new file mode 100644
index 000000000..8bc2ba5f2
--- /dev/null
+++ b/mis_builder_report_xlsx/readme/DESCRIPTION.md
@@ -0,0 +1,2 @@
+This module improves the MIS Reports modules, allowing to
+downloads MIS Reports in XLSX format.
diff --git a/mis_builder_report_xlsx/readme/ROADMAP.md b/mis_builder_report_xlsx/readme/ROADMAP.md
new file mode 100644
index 000000000..432d71e05
--- /dev/null
+++ b/mis_builder_report_xlsx/readme/ROADMAP.md
@@ -0,0 +1,5 @@
+The mis_builder
+[roadmap](https://github.com/OCA/mis-builder/issues?q=is%3Aopen+is%3Aissue+label%3Aenhancement)
+and [known
+issues](https://github.com/OCA/mis-builder/issues?q=is%3Aopen+is%3Aissue+label%3Abug)
+can be found on github.
diff --git a/mis_builder_report_xlsx/readme/USAGE.md b/mis_builder_report_xlsx/readme/USAGE.md
new file mode 100644
index 000000000..d66e548b6
--- /dev/null
+++ b/mis_builder_report_xlsx/readme/USAGE.md
@@ -0,0 +1,10 @@
+- Go to MIS Reports list and form views.
+- Click on 'Export' Button to download your XLSX file.
+
+![image](../static/description/mis_report_instance_list.png)
+
+
+- In the same way, a button is present in the 'preview' form view
+  of your MIS reports.
+
+![image](../static/description/mis_report_instance_preview_form.png)
\ No newline at end of file
diff --git a/mis_builder_report_xlsx/report/__init__.py b/mis_builder_report_xlsx/report/__init__.py
new file mode 100644
index 000000000..586a99cf1
--- /dev/null
+++ b/mis_builder_report_xlsx/report/__init__.py
@@ -0,0 +1 @@
+from . import mis_report_instance_xlsx
diff --git a/mis_builder/report/mis_report_instance_xlsx.py b/mis_builder_report_xlsx/report/mis_report_instance_xlsx.py
similarity index 97%
rename from mis_builder/report/mis_report_instance_xlsx.py
rename to mis_builder_report_xlsx/report/mis_report_instance_xlsx.py
index 26309918e..29b66e809 100644
--- a/mis_builder/report/mis_report_instance_xlsx.py
+++ b/mis_builder_report_xlsx/report/mis_report_instance_xlsx.py
@@ -8,9 +8,9 @@
 
 from odoo import api, fields, models
 
-from ..models.accounting_none import AccountingNone
-from ..models.data_error import DataError
-from ..models.mis_report_style import TYPE_STR
+from odoo.addons.mis_builder.models.accounting_none import AccountingNone
+from odoo.addons.mis_builder.models.data_error import DataError
+from odoo.addons.mis_builder.models.mis_report_style import TYPE_STR
 
 _logger = logging.getLogger(__name__)
 
diff --git a/mis_builder/report/mis_report_instance_xlsx.xml b/mis_builder_report_xlsx/report/mis_report_instance_xlsx.xml
similarity index 100%
rename from mis_builder/report/mis_report_instance_xlsx.xml
rename to mis_builder_report_xlsx/report/mis_report_instance_xlsx.xml
diff --git a/mis_builder_report_xlsx/static/description/index.html b/mis_builder_report_xlsx/static/description/index.html
new file mode 100644
index 000000000..64414b8e1
--- /dev/null
+++ b/mis_builder_report_xlsx/static/description/index.html
@@ -0,0 +1,451 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<meta name="generator" content="Docutils: https://docutils.sourceforge.io/" />
+<title>MIS Builder - Report XLSX</title>
+<style type="text/css">
+
+/*
+:Author: David Goodger (goodger@python.org)
+:Id: $Id: html4css1.css 9511 2024-01-13 09:50:07Z milde $
+:Copyright: This stylesheet has been placed in the public domain.
+
+Default cascading style sheet for the HTML output of Docutils.
+Despite the name, some widely supported CSS2 features are used.
+
+See https://docutils.sourceforge.io/docs/howto/html-stylesheets.html for how to
+customize this style sheet.
+*/
+
+/* used to remove borders from tables and images */
+.borderless, table.borderless td, table.borderless th {
+  border: 0 }
+
+table.borderless td, table.borderless th {
+  /* Override padding for "table.docutils td" with "! important".
+     The right padding separates the table cells. */
+  padding: 0 0.5em 0 0 ! important }
+
+.first {
+  /* Override more specific margin styles with "! important". */
+  margin-top: 0 ! important }
+
+.last, .with-subtitle {
+  margin-bottom: 0 ! important }
+
+.hidden {
+  display: none }
+
+.subscript {
+  vertical-align: sub;
+  font-size: smaller }
+
+.superscript {
+  vertical-align: super;
+  font-size: smaller }
+
+a.toc-backref {
+  text-decoration: none ;
+  color: black }
+
+blockquote.epigraph {
+  margin: 2em 5em ; }
+
+dl.docutils dd {
+  margin-bottom: 0.5em }
+
+object[type="image/svg+xml"], object[type="application/x-shockwave-flash"] {
+  overflow: hidden;
+}
+
+/* Uncomment (and remove this text!) to get bold-faced definition list terms
+dl.docutils dt {
+  font-weight: bold }
+*/
+
+div.abstract {
+  margin: 2em 5em }
+
+div.abstract p.topic-title {
+  font-weight: bold ;
+  text-align: center }
+
+div.admonition, div.attention, div.caution, div.danger, div.error,
+div.hint, div.important, div.note, div.tip, div.warning {
+  margin: 2em ;
+  border: medium outset ;
+  padding: 1em }
+
+div.admonition p.admonition-title, div.hint p.admonition-title,
+div.important p.admonition-title, div.note p.admonition-title,
+div.tip p.admonition-title {
+  font-weight: bold ;
+  font-family: sans-serif }
+
+div.attention p.admonition-title, div.caution p.admonition-title,
+div.danger p.admonition-title, div.error p.admonition-title,
+div.warning p.admonition-title, .code .error {
+  color: red ;
+  font-weight: bold ;
+  font-family: sans-serif }
+
+/* Uncomment (and remove this text!) to get reduced vertical space in
+   compound paragraphs.
+div.compound .compound-first, div.compound .compound-middle {
+  margin-bottom: 0.5em }
+
+div.compound .compound-last, div.compound .compound-middle {
+  margin-top: 0.5em }
+*/
+
+div.dedication {
+  margin: 2em 5em ;
+  text-align: center ;
+  font-style: italic }
+
+div.dedication p.topic-title {
+  font-weight: bold ;
+  font-style: normal }
+
+div.figure {
+  margin-left: 2em ;
+  margin-right: 2em }
+
+div.footer, div.header {
+  clear: both;
+  font-size: smaller }
+
+div.line-block {
+  display: block ;
+  margin-top: 1em ;
+  margin-bottom: 1em }
+
+div.line-block div.line-block {
+  margin-top: 0 ;
+  margin-bottom: 0 ;
+  margin-left: 1.5em }
+
+div.sidebar {
+  margin: 0 0 0.5em 1em ;
+  border: medium outset ;
+  padding: 1em ;
+  background-color: #ffffee ;
+  width: 40% ;
+  float: right ;
+  clear: right }
+
+div.sidebar p.rubric {
+  font-family: sans-serif ;
+  font-size: medium }
+
+div.system-messages {
+  margin: 5em }
+
+div.system-messages h1 {
+  color: red }
+
+div.system-message {
+  border: medium outset ;
+  padding: 1em }
+
+div.system-message p.system-message-title {
+  color: red ;
+  font-weight: bold }
+
+div.topic {
+  margin: 2em }
+
+h1.section-subtitle, h2.section-subtitle, h3.section-subtitle,
+h4.section-subtitle, h5.section-subtitle, h6.section-subtitle {
+  margin-top: 0.4em }
+
+h1.title {
+  text-align: center }
+
+h2.subtitle {
+  text-align: center }
+
+hr.docutils {
+  width: 75% }
+
+img.align-left, .figure.align-left, object.align-left, table.align-left {
+  clear: left ;
+  float: left ;
+  margin-right: 1em }
+
+img.align-right, .figure.align-right, object.align-right, table.align-right {
+  clear: right ;
+  float: right ;
+  margin-left: 1em }
+
+img.align-center, .figure.align-center, object.align-center {
+  display: block;
+  margin-left: auto;
+  margin-right: auto;
+}
+
+table.align-center {
+  margin-left: auto;
+  margin-right: auto;
+}
+
+.align-left {
+  text-align: left }
+
+.align-center {
+  clear: both ;
+  text-align: center }
+
+.align-right {
+  text-align: right }
+
+/* reset inner alignment in figures */
+div.align-right {
+  text-align: inherit }
+
+/* div.align-center * { */
+/*   text-align: left } */
+
+.align-top    {
+  vertical-align: top }
+
+.align-middle {
+  vertical-align: middle }
+
+.align-bottom {
+  vertical-align: bottom }
+
+ol.simple, ul.simple {
+  margin-bottom: 1em }
+
+ol.arabic {
+  list-style: decimal }
+
+ol.loweralpha {
+  list-style: lower-alpha }
+
+ol.upperalpha {
+  list-style: upper-alpha }
+
+ol.lowerroman {
+  list-style: lower-roman }
+
+ol.upperroman {
+  list-style: upper-roman }
+
+p.attribution {
+  text-align: right ;
+  margin-left: 50% }
+
+p.caption {
+  font-style: italic }
+
+p.credits {
+  font-style: italic ;
+  font-size: smaller }
+
+p.label {
+  white-space: nowrap }
+
+p.rubric {
+  font-weight: bold ;
+  font-size: larger ;
+  color: maroon ;
+  text-align: center }
+
+p.sidebar-title {
+  font-family: sans-serif ;
+  font-weight: bold ;
+  font-size: larger }
+
+p.sidebar-subtitle {
+  font-family: sans-serif ;
+  font-weight: bold }
+
+p.topic-title {
+  font-weight: bold }
+
+pre.address {
+  margin-bottom: 0 ;
+  margin-top: 0 ;
+  font: inherit }
+
+pre.literal-block, pre.doctest-block, pre.math, pre.code {
+  margin-left: 2em ;
+  margin-right: 2em }
+
+pre.code .ln { color: gray; } /* line numbers */
+pre.code, code { background-color: #eeeeee }
+pre.code .comment, code .comment { color: #5C6576 }
+pre.code .keyword, code .keyword { color: #3B0D06; font-weight: bold }
+pre.code .literal.string, code .literal.string { color: #0C5404 }
+pre.code .name.builtin, code .name.builtin { color: #352B84 }
+pre.code .deleted, code .deleted { background-color: #DEB0A1}
+pre.code .inserted, code .inserted { background-color: #A3D289}
+
+span.classifier {
+  font-family: sans-serif ;
+  font-style: oblique }
+
+span.classifier-delimiter {
+  font-family: sans-serif ;
+  font-weight: bold }
+
+span.interpreted {
+  font-family: sans-serif }
+
+span.option {
+  white-space: nowrap }
+
+span.pre {
+  white-space: pre }
+
+span.problematic, pre.problematic {
+  color: red }
+
+span.section-subtitle {
+  /* font-size relative to parent (h1..h6 element) */
+  font-size: 80% }
+
+table.citation {
+  border-left: solid 1px gray;
+  margin-left: 1px }
+
+table.docinfo {
+  margin: 2em 4em }
+
+table.docutils {
+  margin-top: 0.5em ;
+  margin-bottom: 0.5em }
+
+table.footnote {
+  border-left: solid 1px black;
+  margin-left: 1px }
+
+table.docutils td, table.docutils th,
+table.docinfo td, table.docinfo th {
+  padding-left: 0.5em ;
+  padding-right: 0.5em ;
+  vertical-align: top }
+
+table.docutils th.field-name, table.docinfo th.docinfo-name {
+  font-weight: bold ;
+  text-align: left ;
+  white-space: nowrap ;
+  padding-left: 0 }
+
+/* "booktabs" style (no vertical lines) */
+table.docutils.booktabs {
+  border: 0px;
+  border-top: 2px solid;
+  border-bottom: 2px solid;
+  border-collapse: collapse;
+}
+table.docutils.booktabs * {
+  border: 0px;
+}
+table.docutils.booktabs th {
+  border-bottom: thin solid;
+  text-align: left;
+}
+
+h1 tt.docutils, h2 tt.docutils, h3 tt.docutils,
+h4 tt.docutils, h5 tt.docutils, h6 tt.docutils {
+  font-size: 100% }
+
+ul.auto-toc {
+  list-style-type: none }
+
+</style>
+</head>
+<body>
+<div class="document" id="mis-builder-report-xlsx">
+<h1 class="title">MIS Builder - Report XLSX</h1>
+
+<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+!! This file is generated by oca-gen-addon-readme !!
+!! changes will be overwritten.                   !!
+!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+!! source digest: sha256:5c01f05913a972ff6c782fea6e1fe238222c3296f4d7ae10e4f2f86b2cf11fbe
+!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
+<p><a class="reference external image-reference" href="https://odoo-community.org/page/development-status"><img alt="Beta" src="https://img.shields.io/badge/maturity-Beta-yellow.png" /></a> <a class="reference external image-reference" href="http://www.gnu.org/licenses/agpl-3.0-standalone.html"><img alt="License: AGPL-3" src="https://img.shields.io/badge/licence-AGPL--3-blue.png" /></a> <a class="reference external image-reference" href="https://github.com/OCA/mis-builder/tree/18.0/mis_builder_report_xlsx"><img alt="OCA/mis-builder" src="https://img.shields.io/badge/github-OCA%2Fmis--builder-lightgray.png?logo=github" /></a> <a class="reference external image-reference" href="https://translation.odoo-community.org/projects/mis-builder-18-0/mis-builder-18-0-mis_builder_report_xlsx"><img alt="Translate me on Weblate" src="https://img.shields.io/badge/weblate-Translate%20me-F47D42.png" /></a> <a class="reference external image-reference" href="https://runboat.odoo-community.org/builds?repo=OCA/mis-builder&amp;target_branch=18.0"><img alt="Try me on Runboat" src="https://img.shields.io/badge/runboat-Try%20me-875A7B.png" /></a></p>
+<p>This module improves the MIS Reports modules, allowing to downloads MIS
+Reports in XLSX format.</p>
+<p><strong>Table of contents</strong></p>
+<div class="contents local topic" id="contents">
+<ul class="simple">
+<li><a class="reference internal" href="#usage" id="toc-entry-1">Usage</a></li>
+<li><a class="reference internal" href="#known-issues-roadmap" id="toc-entry-2">Known issues / Roadmap</a></li>
+<li><a class="reference internal" href="#bug-tracker" id="toc-entry-3">Bug Tracker</a></li>
+<li><a class="reference internal" href="#credits" id="toc-entry-4">Credits</a><ul>
+<li><a class="reference internal" href="#authors" id="toc-entry-5">Authors</a></li>
+<li><a class="reference internal" href="#contributors" id="toc-entry-6">Contributors</a></li>
+<li><a class="reference internal" href="#maintainers" id="toc-entry-7">Maintainers</a></li>
+</ul>
+</li>
+</ul>
+</div>
+<div class="section" id="usage">
+<h1><a class="toc-backref" href="#toc-entry-1">Usage</a></h1>
+<ul class="simple">
+<li>Go to MIS Reports list and form views.</li>
+<li>Click on ‘Export’ Button to download your XLSX file.</li>
+</ul>
+<p><img alt="image" src="https://raw.githubusercontent.com/OCA/mis-builder/18.0/mis_builder_report_xlsx/static/description/mis_report_instance_list.png" /></p>
+<ul class="simple">
+<li>In the same way, a button is present in the ‘preview’ form view of
+your MIS reports.</li>
+</ul>
+<p><img alt="image1" src="https://raw.githubusercontent.com/OCA/mis-builder/18.0/mis_builder_report_xlsx/static/description/mis_report_instance_preview_form.png" /></p>
+</div>
+<div class="section" id="known-issues-roadmap">
+<h1><a class="toc-backref" href="#toc-entry-2">Known issues / Roadmap</a></h1>
+<p>The mis_builder
+<a class="reference external" href="https://github.com/OCA/mis-builder/issues?q=is%3Aopen+is%3Aissue+label%3Aenhancement">roadmap</a>
+and <a class="reference external" href="https://github.com/OCA/mis-builder/issues?q=is%3Aopen+is%3Aissue+label%3Abug">known
+issues</a>
+can be found on github.</p>
+</div>
+<div class="section" id="bug-tracker">
+<h1><a class="toc-backref" href="#toc-entry-3">Bug Tracker</a></h1>
+<p>Bugs are tracked on <a class="reference external" href="https://github.com/OCA/mis-builder/issues">GitHub Issues</a>.
+In case of trouble, please check there if your issue has already been reported.
+If you spotted it first, help us to smash it by providing a detailed and welcomed
+<a class="reference external" href="https://github.com/OCA/mis-builder/issues/new?body=module:%20mis_builder_report_xlsx%0Aversion:%2018.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**">feedback</a>.</p>
+<p>Do not contact contributors directly about support or help with technical issues.</p>
+</div>
+<div class="section" id="credits">
+<h1><a class="toc-backref" href="#toc-entry-4">Credits</a></h1>
+<div class="section" id="authors">
+<h2><a class="toc-backref" href="#toc-entry-5">Authors</a></h2>
+<ul class="simple">
+<li>ACSONE SA/NV</li>
+<li>GRAP</li>
+</ul>
+</div>
+<div class="section" id="contributors">
+<h2><a class="toc-backref" href="#toc-entry-6">Contributors</a></h2>
+<ul class="simple">
+<li>Stéphane Bidoul &lt;<a class="reference external" href="mailto:stephane.bidoul&#64;acsone.eu">stephane.bidoul&#64;acsone.eu</a>&gt;</li>
+<li>Sylvain LE GAL</li>
+</ul>
+</div>
+<div class="section" id="maintainers">
+<h2><a class="toc-backref" href="#toc-entry-7">Maintainers</a></h2>
+<p>This module is maintained by the OCA.</p>
+<a class="reference external image-reference" href="https://odoo-community.org">
+<img alt="Odoo Community Association" src="https://odoo-community.org/logo.png" />
+</a>
+<p>OCA, or the Odoo Community Association, is a nonprofit organization whose
+mission is to support the collaborative development of Odoo features and
+promote its widespread use.</p>
+<p>Current <a class="reference external" href="https://odoo-community.org/page/maintainer-role">maintainer</a>:</p>
+<p><a class="reference external image-reference" href="https://github.com/sbidoul"><img alt="sbidoul" src="https://github.com/sbidoul.png?size=40px" /></a></p>
+<p>This module is part of the <a class="reference external" href="https://github.com/OCA/mis-builder/tree/18.0/mis_builder_report_xlsx">OCA/mis-builder</a> project on GitHub.</p>
+<p>You are welcome to contribute. To learn how please visit <a class="reference external" href="https://odoo-community.org/page/Contribute">https://odoo-community.org/page/Contribute</a>.</p>
+</div>
+</div>
+</div>
+</body>
+</html>
diff --git a/mis_builder_report_xlsx/static/description/mis_report_instance_list.png b/mis_builder_report_xlsx/static/description/mis_report_instance_list.png
new file mode 100644
index 000000000..6c5905d32
Binary files /dev/null and b/mis_builder_report_xlsx/static/description/mis_report_instance_list.png differ
diff --git a/mis_builder_report_xlsx/static/description/mis_report_instance_preview_form.png b/mis_builder_report_xlsx/static/description/mis_report_instance_preview_form.png
new file mode 100644
index 000000000..0a08a3d38
Binary files /dev/null and b/mis_builder_report_xlsx/static/description/mis_report_instance_preview_form.png differ
diff --git a/mis_builder_report_xlsx/static/src/components/mis_report_widget.esm.js b/mis_builder_report_xlsx/static/src/components/mis_report_widget.esm.js
new file mode 100644
index 000000000..76eaa65e9
--- /dev/null
+++ b/mis_builder_report_xlsx/static/src/components/mis_report_widget.esm.js
@@ -0,0 +1,14 @@
+import {MisReportWidget} from "@mis_builder/components/mis_report_widget.esm";
+import {patch} from "@web/core/utils/patch";
+
+patch(MisReportWidget.prototype, {
+    async exportXls() {
+        const action = await this.orm.call(
+            "mis.report.instance",
+            "export_xls",
+            [this._instanceId()],
+            {context: this.context}
+        );
+        this.action.doAction(action);
+    },
+});
diff --git a/mis_builder_report_xlsx/static/src/components/mis_report_widget.xml b/mis_builder_report_xlsx/static/src/components/mis_report_widget.xml
new file mode 100644
index 000000000..83d95b605
--- /dev/null
+++ b/mis_builder_report_xlsx/static/src/components/mis_report_widget.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<templates>
+    <t
+        t-name="mis_builder_report_xlsx.MisReportWidget"
+        t-inherit="mis_builder.MisReportWidget"
+        t-inherit-mode="extension"
+    >
+        <xpath expr="//button[@t-on-click='printPdf']" position="after">
+            <button t-on-click="exportXls" class="btn">
+                <span class="fa fa-download" /> Export </button>
+        </xpath>
+    </t>
+</templates>
diff --git a/mis_builder_report_xlsx/tests/__init__.py b/mis_builder_report_xlsx/tests/__init__.py
new file mode 100644
index 000000000..606f85fc5
--- /dev/null
+++ b/mis_builder_report_xlsx/tests/__init__.py
@@ -0,0 +1,2 @@
+from . import test_mis_report_instance
+from . import test_render
diff --git a/mis_builder_report_xlsx/tests/test_mis_report_instance.py b/mis_builder_report_xlsx/tests/test_mis_report_instance.py
new file mode 100644
index 000000000..38277453d
--- /dev/null
+++ b/mis_builder_report_xlsx/tests/test_mis_report_instance.py
@@ -0,0 +1,28 @@
+# Copyright 2016 ACSONE SA/NV (<http://acsone.eu>)
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
+
+from odoo.tools import test_reports
+
+from odoo.addons.mis_builder.tests.test_mis_report_instance import TestMisReportInstance
+
+
+class TestMisReportInstanceReportXlsx(TestMisReportInstance):
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+
+    def test_xlsx(self):
+        self.report_instance.export_xls()  # get action
+        with self.assertLogs("odoo.tools.test_reports", level="WARNING") as log_catcher:
+            test_reports.try_report(
+                self.env.cr,
+                self.env.uid,
+                "mis_builder_report_xlsx.xls_export",
+                [self.report_instance.id],
+                report_type="xlsx",
+            )
+        self.assertIn(
+            "Report mis_builder_report_xlsx.xls_export"
+            ' produced a "xlsx" chunk, cannot examine it',
+            log_catcher.output[0],
+        )
diff --git a/mis_builder_report_xlsx/tests/test_render.py b/mis_builder_report_xlsx/tests/test_render.py
new file mode 100644
index 000000000..523e13e42
--- /dev/null
+++ b/mis_builder_report_xlsx/tests/test_render.py
@@ -0,0 +1,84 @@
+# Copyright 2016 ACSONE SA/NV (<http://acsone.eu>)
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
+
+
+from odoo.addons.mis_builder.models.mis_report_style import TYPE_NUM, TYPE_PCT, TYPE_STR
+from odoo.addons.mis_builder.tests.test_render import TestRendering
+
+
+class TestRenderingReportXlsx(TestRendering):
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+
+    def test_xlsx(self):
+        self.style.color_inherit = False
+        self.style.color = "#FF0000"
+        self.style.background_color_inherit = False
+        self.style.background_color = "#0000FF"
+        self.style.suffix_inherit = False
+        self.style.suffix = "s"
+        self.style.prefix_inherit = False
+        self.style.prefix = "p"
+        self.style.dp_inherit = False
+        self.style.dp = 2
+        self.style.font_style_inherit = False
+        self.style.font_style = "italic"
+        self.style.font_weight_inherit = False
+        self.style.font_weight = "bold"
+        self.style.font_size_inherit = False
+        self.style.font_size = "small"
+        self.style.indent_level_inherit = False
+        self.style.indent_level = 2
+        style_props = self.style_obj.merge([self.style])
+        xlsx = self.style_obj.to_xlsx_style(TYPE_NUM, style_props)
+        self.assertEqual(
+            xlsx,
+            {
+                "italic": True,
+                "bold": True,
+                "font_size": 9,
+                "font_color": "#FF0000",
+                "bg_color": "#0000FF",
+                "num_format": '"p "#,##0.00" s"',
+                "indent": 2,
+            },
+        )
+        xlsx = self.style_obj.to_xlsx_style(TYPE_NUM, style_props, no_indent=True)
+        self.assertEqual(
+            xlsx,
+            {
+                "italic": True,
+                "bold": True,
+                "font_size": 9,
+                "font_color": "#FF0000",
+                "bg_color": "#0000FF",
+                "num_format": '"p "#,##0.00" s"',
+            },
+        )
+        # percent type ignore prefix and suffix
+        xlsx = self.style_obj.to_xlsx_style(TYPE_PCT, style_props, no_indent=True)
+        self.assertEqual(
+            xlsx,
+            {
+                "italic": True,
+                "bold": True,
+                "font_size": 9,
+                "font_color": "#FF0000",
+                "bg_color": "#0000FF",
+                "num_format": "0.00%",
+            },
+        )
+
+        # str type have no num_format style
+        xlsx = self.style_obj.to_xlsx_style(TYPE_STR, style_props, no_indent=True)
+        self.assertEqual(
+            xlsx,
+            {
+                "italic": True,
+                "bold": True,
+                "font_size": 9,
+                "font_color": "#FF0000",
+                "bg_color": "#0000FF",
+            },
+        )
diff --git a/mis_builder_report_xlsx/views/mis_report_instance.xml b/mis_builder_report_xlsx/views/mis_report_instance.xml
new file mode 100644
index 000000000..e6753ee66
--- /dev/null
+++ b/mis_builder_report_xlsx/views/mis_report_instance.xml
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<odoo>
+    <record model="ir.ui.view" id="mis_report_instance_view_list">
+        <field name="model">mis.report.instance</field>
+        <field name="inherit_id" ref="mis_builder.mis_report_instance_view_list" />
+        <field name="arch" type="xml">
+            <button name="print_pdf" position="after">
+                <button
+                    type="object"
+                    name="export_xls"
+                    string="Export"
+                    icon="fa-download"
+                />
+            </button>
+        </field>
+    </record>
+
+    <record model="ir.ui.view" id="mis_report_instance_view_form">
+        <field name="model">mis.report.instance</field>
+        <field name="inherit_id" ref="mis_builder.mis_report_instance_view_form" />
+        <field name="arch" type="xml">
+            <button name="print_pdf" position="after">
+                <button
+                    type="object"
+                    name="export_xls"
+                    string="Export"
+                    icon="fa-download"
+                    class="btn"
+                />
+            </button>
+        </field>
+    </record>
+
+    <record id="wizard_mis_report_instance_view_form" model="ir.ui.view">
+        <field name="model">mis.report.instance</field>
+        <field
+            name="inherit_id"
+            ref="mis_builder.wizard_mis_report_instance_view_form"
+        />
+        <field name="arch" type="xml">
+            <xpath expr="//footer/button[@name='print_pdf']" position="after">
+                <button
+                    type="object"
+                    name="export_xls"
+                    string="Export"
+                    icon="fa-download"
+                    class="btn"
+                />
+            </xpath>
+        </field>
+    </record>
+</odoo>