em.py

import tkinter as tk
from tkinter import filedialog, Text
import os


root = tk.Tk()
apps = []
if os.path.isfile('save.txt'):
    with open('save.txt', 'r') as f:
        tempApps = f.read()
        tempApps = tempApps.split(',')
        apps = [x for x in tempApps if x.strip()]


def addApp():
    for widget in frame.winfo_children():
        widget.destroy()
    filename= filedialog.askopenfilename(initialdir="/", title="Select File",filetypes=(("executables" , "*.exe"),("all files","*.*")))
    apps.append(filename)
    print(filename)
    for app in apps:
        label = tk.Label(frame, text=app, bg="gray")
        label.pack()
def runApps():
    for app in apps:
        os.startfile(app)
canvas = tk.Canvas(root, height=500, width=500, bg="#263D42")
canvas.pack()
frame= tk.Frame(root, bg="white")
frame.place(relwidth=0.8,relheight=0.8,relx=0.1,rely=0.1)

openFile = tk.Button(root, text="Open File", padx=10,pady=5,fg="white",bg="#263D42", command=addApp)
openFile.pack()
runApps = tk.Button(root, text="Run Apps", padx=10,pady=5,fg="white",bg="#263D42", command=runApps)
runApps.pack()


for app in apps:
    label = tk.Label(frame, text=app)
    label.pack()

root.mainloop()
with open('save.txt', 'w') as f:
    for app in apps:
        f.write(app + ',')