How to Enter a Subscript in Excel. Properly formatting expressions such as "H2O" in your Excel spreadsheet requires the use of subscripts. Subscript formatting makes a letter or number appear ...

Subscript, or sub, letters are important when writing math or chemistry formulas because, without these letters, the formulas would be unintelligible. Excel was designed to write and use math or ...

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