Why MATCH Can’t Find Values That Clearly Exist in Excel
MATCH returns #N/A even when the value is visibly in the list. Learn the three root causes — type mismatch, hidden spaces, and wrong match_type — and how to fix each one.
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Why VLOOKUP Gets Slow in Large Excel Workbooks
VLOOKUP slows down as data grows because of full column references and repeated lookups. Learn the real causes and how to fix performance without changing your logic.
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Why VLOOKUP Breaks When Columns Change in Excel
VLOOKUP uses a hardcoded column number that shifts when columns are inserted or moved. Learn why it breaks silently and how INDEX/MATCH fixes it permanently.
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Why VLOOKUP Breaks in Modern Excel Workbooks
VLOOKUP silently returns wrong values when columns move or tables grow. Learn exactly why it breaks and how to replace it with XLOOKUP or INDEX/MATCH for reliable results.