Five hidden Excel rules show helper columns, LET, and LAMBDA in action, cutting errors and making updates quick for any ...

Learn how Excel functions can act as data using LAMBDA, LET, and BYROW, so you reuse logic and cut formula edits.

Block bad data, duplicates, and incorrect dates with these custom rules.

A practical guide to Excel sheet formulas, covering essential functions for faster calculations, cleaner data, and smoother ...

We noted that Excel turned 40 this year. That makes it seem old, and today, if you say “spreadsheet,” there’s a good chance ...