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

Have you ever carefully crafted a formula in Excel, only to watch it unravel into chaos the moment you copy it across columns? It’s a maddening quirk of Excel tables—structured references that seem to ...

Whole-column references in Excel are silent performance killers, often forcing the program to manage a range of over a ...

There are two ways to fix this cause of the #SPILL! error. First, select the entire spill range (or at least the cell or ...