Excel validation lists avoid blanks and errors with TOCOL(ignore) plus FILTER; the spill range stays stable across worksheets.
Have you ever spent hours manually updating Excel sheets, only to realize a single broken link threw your entire dataset into chaos? Managing interconnected workbooks can feel like walking a tightrope ...
Use dynamic arrays and tables for fast, scalable cascading drop-down lists in modern Excel.
This could be the key to making your Excel sheets more useable.