Microsoft will retire Excel's COPILOT() function on September 14, barely a year after its preview debut. Introduced in August 2025, initially for Beta Channel users with a Microsoft 365 Copilot ...
You don't need to memorize 100 Excel functions. You need these 22. SUMIF, XLOOKUP, IFS, IFERROR, the ones that actually show up in daily finance work Save this one! ☝️ ...
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