You can use Excel, Microsoft's spreadsheet program, to store, organize, and analyze data in a number of ways.

Calculate the difference between two values in your Microsoft Excel worksheet. Excel provides one general formula that finds the difference between numbers, dates and times. It also provides some ...

Microsoft Excel handles dates as numbers, even though they display as dates -- for example, the date "10/10/2011" is really stored as "40826." This makes it difficult to directly add or subtract years ...