A common source of errors in Excel is "the gap"—a situation where you add new data to the bottom of a list, but your formulas ...

Learn how GROUPBY passes both subset and full arrays into LAMBDA in Excel, letting you compute percent shares fast and explain results clearly.

Using the example in our spreadsheet or a similar spreadsheet, highlight all the revenue numbers in the sheet and then in the ...

If Word, Excel, PowerPoint automatically reset settings on exit, follow these instructions e.g. check folder and Reigtsry ...

If Excel is not recognizing functions after reboot, change calculation settings, disable Show Formula, run Excel ...

Learn the difference between Excel COUNT and COUNTA, plus TEXTBEFORE and TEXTAFTER tricks, so you clean text and totals with ...

Diarmuid Early won first place in the 2025 Microsoft Excel World Championship. He has some pointers for using Excel at work.

If a contractor disagrees with an IR35 determination that classifies them as "inside IR35," what do they do? This happened recently to a contractor who was classified by the NHS as inside IR35 and has ...

FORECAST.ETS applies an exponential triple smoothing (ETS) algorithm to create forecasts that can include trend and seasonal ...

The SCAN function lives in a single cell and spills the results down the column, ensuring my totals are always structurally and mathematically correct. The SCAN function has three arguments: ...