You can apply, customize, and save a document theme in Word, Excel or PowerPoint. Learn how to add new themes to Office programs.

Learn how to add Themes, Themes Colors, Fonts to your Excel Workbook, and Effects to your Workbook Object and change its appearance.

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.

The default active cell format in Microsoft Excel isn't all that easy to see, but you can use this easy-to-implement code solution to change that.