I have written an application using Python code utilizing the Pandas and Openpyxl modules.
Summary of my app:
Browse and find an excel file(original), browse and find another excel file(new).
Press a button and update certain columns from original file with information of new file using name of item as a reference. Press save button and save the file to my computer.
Using my Windows machine I have made it into an .exe file and everything works perfectly fine. I am able to do everything I created it to do. I am trying to make it compatible on both Windows and MacOS. I have created a .app file using Py2App, and the app "runs" just fine. I am able to browse for files and so far it looks like I am able to save files. The problem is that the files I am trying to "use" are completely greyed out and I am unable to choose any files. I’m fairly new to MacOS so any advice or help would be greatly appreciated.
>Solution :
Change the file format selector.