Learn how to highlight cells with negative values in Excel. Make negative numbers stand out in Red using Conditional or Custom Formatting.

If the Excel cell format is not changing to a number because the Number formatting is not working, take these steps to fix the issue.

Excel gives you quite a few options to choose from under Number > Date in the Format Cells dialog (which, again, you get to by pressing Ctrl-1 or Command-1 on the Mac).

Excel's conditional formatting lets you formats cells based on the value of those cells or their formulas. Learn the basics of this amazing feature.

Conditional formatting highlights key information in a spreadsheet so it’s easy to see at a glance. This beginner’s guide gets you started using conditional formatting.

When you type a seven-or-ten-digit phone number into an Excel cell that uses the phone number format, Excel will automatically change the way the number looks so that it appears as a phone number ...