Excel's UNIQUE function is the modern, non-destructive answer to the mailing list problem. Instead of deleting rows from your ...

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

Excel still trips over dates, ghost links, and undo history. These six fixes would save hours for everyday users.

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