Excel validation lists avoid blanks and errors with TOCOL(ignore) plus FILTER; the spill range stays stable across worksheets.

Use dynamic arrays and tables for fast, scalable cascading drop-down lists in modern Excel.

How to use UNIQUE() to populate a dropdown in Microsoft Excel Your email has been sent Populating a dropdown with a dynamic list is easy thanks to Microsoft Excel’s UNIQUE() dynamic array function.

Drop-down lists in an Excel sheet can greatly facilitate data entry. Here's a look at how to use Microsoft Excel's data validation feature to create handy lists within your worksheets. An Excel ...