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With the functions I'll discuss here, you can make data cleanup much easier in Excel. They allow you to extract, style, split, and join text to get what you need without wasting hours doing it ...

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

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