XLSX is not remotely the same as CSV. CSV is way more widely used than you think under the hood of stuff and is a muuuuuch more slimmed down format. It's litter

XLSX is not remotely the same as CSV. CSV is way more widely used than you think under the hood of stuff and is a muuuuuch more slimmed down format. It's litterally just values separated by a delimiter. XLSX also isn't a standard. It'll keep changing. It's one of those reasons why Microsoft tried to shoehorn their own trash Open document format that would fit them and let them keep backwards compatibility with stoneage versions of their office suite. https://www.computerweekly.com/news/2240225262/Microsoft-attacks-UK-government-decision-to-adopt-ODF-for-document-formats https://www.computerweekly.com/news/2240225262/Microsoft-att... It's like saying everyone should have adapted to internet explorer rather than following proper web standards. Even if XSLX was some kind of standard it's a bad idea because at the end of the day MS shouldn't be trusted with those.