Select all the relevant cells, and in the Data tab, click the main part of the split "Data Validation" button. Then, click ...

This guide describes how to grey out unused cells in Excel in Windows 11/10, apply a solid fill color, use Conditional Formatting, or hide unused rows/columns.

What finally helped me break that cycle was learning to use named ranges in Excel not only as stable anchors but also as flexible, relative references that behaved exactly the way I intended. Once I ...