Use MAP and LAMBDA to build centralized, error-proof, and auto-spilling Excel spreadsheet systems.

Have you ever found yourself endlessly dragging formulas across rows or columns in Excel, only to realize there’s got to be a better way? Maybe you’ve spent hours creating helper columns or ...

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 ...