I'm sure he's not, I am one and I have to use excel though I also hate the ribbon but I just use excel 2010 + ubitmenu and will continue to use that version or similar until I can't anymore

I had used excel 2003 until I was forced to use win 10 at which point it barely functioned anymore (i.e., it worked great in win 7)

I still miss excel 2003, it has been downhill from there

As for accounting software, they all mostly stink though serve a purpose in larger companies where you need some degree of separation of duties to reduce (at least in appearance as much internal control is theatre) error/theft risk...

I'm not, and I'm sure if I had to use Excel every day I would adapt. But both Windows and Office reached their peak at around 2003 and it's been downhill ever since. I quite liked Windows 2000 Pro as a desktop.