FreeDOS (28.06.2020)
If you know me, you know I love a good DOS spreadsheet. And Quattro Pro was really the last bastion of DOS spreadsheets before Windows dominated the workplace.
In the video, I mention the lawsuit between Lotus (1-2-3) and Borland (Quattro Pro) about the menus. You can read a quick summary on Wikipedia: https://en.wikipedia.org/wiki/Quattro_Pro