How to grey out unused cells in Excel

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.
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6 formatting tips I wish I knew when I started using Excel

When I started using Microsoft Excel, my spreadsheets were a mess, and I wasted hours trying to make them look professional.
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You need to know the difference between a range and an array in Excel

Excel processes the range (A1:A10) by converting it into an array in memory. This array is what Excel works with to calculate the sum. The distinction is subtle but important: while the range is the ...

Stop Rewriting Formulas : Handle Functions Like Data in Excel and Power Query

Learn how Excel functions can act as data using LAMBDA, LET, and BYROW, so you reuse logic and cut formula edits.

MS Copilot’s Excel Agent Cleans, Validates & Speeds Checks : 10x Your Productivity

Microsoft Copilot for Excel creates a separate check tab that checks row counts per source, helping you spot missing or extra ...
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Collecting physical media? You should make a list

If you own a large collection of physical media, be it movies, TV shows, games, or music, you've probably made at least a few ...