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

How to highlight values Excel has a built-in conditional rule that highlights unique values. You don’t have to come up with a special formula—you just run though a few clicks.

Learn how to highlight dates before today and a specific date with and without using the Today() function in Microsoft Excel.

If you want duplicate values to stand out in an Excel spreadsheet, you can choose between two conditional formatting rules.