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

Learn how to quickly find duplicates in Excel, whether you’re comparing one list or two. This tutorial shows step-by-step methods for highlighting duplicate values, using formulas, and speeding up ...

Excel files bloat from ghost used ranges, formatting, pivot caches, and images. These quick fixes massively cut the size of ...

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

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Vikki Velasquez is a researcher and writer ...

Microsoft's spreadsheet program can do way more than you might imagine. These are the hacks and tricks you need to know.