We should steal The Declaration of Independence Microsoft Excel!
This has functionally already been done, its called LibreOffice Calc.
95% chance any business process that uses or touches Excel can be switched over to that with some minor tweaks, 5% chance someone might have to actually code some kind of custom API / batch file shim type thing, or its some stupidly niche situation where you truly are stuck paying your liscensing fer capitalism tithe to MSFT.
This has functionally already been done, its called LibreOffice Calc.
95% chance any business process that uses or touches Excel can be switched over to that with some minor tweaks, 5% chance someone might have to actually code some kind of custom API / batch file shim type thing, or its some stupidly niche situation where you truly are stuck paying your
liscensing fercapitalism tithe to MSFT.