One of the many features of Excel is being nosy. That's right, you can quickly calculate a persons age as long as you have their birth date.

Percentages aren't always easy to calculate, but one of the best tools in Excel's toolbox is calculating percentages for you. Here's how to do it.

How to Calculate Multiple Cells in Excel. Microsoft Excel is a spreadsheet program used to store and analyze data. While Excel is able to hold both text and numerical data, most of the pre ...