Properly formatting expressions such as "H2O" in your Excel spreadsheet requires the use of subscripts. Subscript formatting makes a letter or number appear smaller and slightly below the rest of ...

Some programs don't provide shortcuts for subscript, but you can at least open the menu using the keyboard before you use the mouse to choose subscript. For example, in Microsoft Excel, press ...

Learn how to add superscript and subscript buttons to the toolbars in Word, PowerPoint, and Excel in both Office 2004 and 2008.