[pbronez]

Sure, but that has nothing to do with Excel. You could say the same thing about basically any legacy application on any stack.

[sircastor]

Yes,it doesn’t have anything to do with Excel, except Excel is there, has been there for 25 years and keeps getting updated and supported.

I can’t speak to what gets maintained in Excel, but compared to some Win95 program, it’s in much better shape.

[ajnin]

It does have something to do with it in the sense that it locks code in a proprietary format that does not allow code traceability and source co trol, and does not favor best practices like code comments and commit comments. That does make maintenance harder.