This Google Sheets Advanced Tutorial explains IF, VLOOKUP, INDEX MATCH, and pivot tables, plus macros and Apps Script for ...
ChatGPT can assist with complex Excel formulas, including a VLOOKUP plus IFERROR to return not listed when no match appears.
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Why your old Excel spreadsheet is 'legacy code' (and how to fix it)
Transform legacy spreadsheets into maintainable, automated tools that scale and survive the test of time.
If it involves numbers, there’s a good chance I’ve already opened Excel and used one of these features for it.
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