Excel validation lists avoid blanks and errors with TOCOL(ignore) plus FILTER; the spill range stays stable across worksheets.
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The game-changing Excel ribbon feature I wish I'd used sooner
Stop hunting through tabs—build a portable custom ribbon containing your favorite commands and Excel's most useful secret ...
You can plug in your phone, download an emulator, or install the Google Play Store to access Android apps on your computer. Some tinkering may be required.
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