Excel validation lists avoid blanks and errors with TOCOL(ignore) plus FILTER; the spill range stays stable across worksheets.
Follow the steps below to create a drop-down list using data validation in Excel. If you want to add a message pop up, you can click the Input Message tab and check the checkbox for “Show input ...
Excel's data validation feature is more versatile than you might think. Learn how to use literal values, input values, list values, and even formulas to restrict input date values using data ...
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Stop fixing Excel formulas: 5 vital habits for data integrity
Prevent broken formulas using tables, validation rules, separate worksheets, named variables, and the power of LAMBDA.
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