Yes, but those things have been historically mostly provided by volonteers, and I can understand they didn't want to spend a lot of effort trying to clean the m

Yes, but those things have been historically mostly provided by volonteers, and I can understand they didn't want to spend a lot of effort trying to clean the mess of a giant corporation of Microsoft for free. MS should have provided a formulat parser and interpretter as a FOSS portable C lib decades ago. But at the time, they didn't pretend to be the good guys to win market shares, they publically despised anything open or free, so it couldn't happen. I guess it would have help OOo a lot at the time, and would help pandas today. Now that MS has VSCode, maybe they'll end up doing a LSP, but I doubt it. Programmers are not their target for excel.