View and Apply a Theme : Theme « Format Style « Microsoft Office Excel 2007 Tutorial

1. Microsoft Office Excel 2007 Tutorial
2. Format Style
3. Theme

Click the Page Layout tab. 
           Click the Themes button to display the themes gallery. 
           The current theme appears highlighted in the gallery.

Point to a theme and a live preview appears in the worksheet, along with a ScreenTip. 
           Click the theme you want to apply to the active worksheet.

Check the result

3.6.Theme
	3.6.1.	View and Apply a Theme
	3.6.2.	Create a theme by customizing theme colors, theme fonts, and theme effects
	3.6.3.	Choose and Apply a Custom Theme
	3.6.4.	Select and Apply a Custom Theme From a File