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

How to Make Colors Change With Validation in Excel. Excel's conditional formatting tool applies formatting depending on cells' contents. Validation rules can change cells font, style, size or border.

How to Change to Accounting Format in Excel. The accounting format in Microsoft Excel 2010 is very similar to the currency format---both display the currency symbol next to every number.