The Office Scripts action recorder can generate code snippets for Excel changes, but some actions still require manual ...
Use dynamic arrays and tables for fast, scalable cascading drop-down lists in modern Excel.
Select winners in Excel using classic INDEX formulas or modern CHOOSEROWS and TAKE combinations.
Excel validation lists avoid blanks and errors with TOCOL(ignore) plus FILTER; the spill range stays stable across worksheets.
If Excel is not using threads efficiently, calculations may take a long time to complete. Learn how to speed up calculating threads in Excel.