These four overlooked Excel features completely changed how I design spreadsheets.

Python has made using Microsoft Excel much easier than it has ever been, and it isn't very hard to start using it yourself.

Excel validation lists avoid blanks and errors with TOCOL(ignore) plus FILTER; the spill range stays stable across worksheets ...

Glide turns an Excel spreadsheet into an inventory app; computed columns replace formulas, giving live stock-on-hand totals ...