[emeril]

maybe try rowzero.io as at least a remotely calculated alternative?

I live in excel sadly and it's all been downhill since excel 2003

as for better math calcs, yeah excel isn't perfect for true accuracy of decimal math but that rarely matters in 99.99% of use cases - if you need really accurate math you use R/Python/etc.

if you need something for the masses, visicalc/lotus/excel is the solution