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

Have you ever struggled to sort data in Excel in a way that truly fits your needs? Imagine trying to organize a list of regions not alphabetically, but in a specific order like “North, South, East, ...

Excel's ascending and descending sort options are powerful tools, but they won't always sort values in a familiar and meaningful way. When this is the case, you might need a custom sort. Sorting is a ...

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