These four overlooked Excel features completely changed how I design spreadsheets.

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

Python has made using Microsoft Excel much easier than it has ever been, and it isn't very hard to start using it yourself.

Learn how Excel IMPORTCSV refreshes linked CSV data, handles locale formats, and switches to IMPORTTEXT for semicolon delimiters.