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 ...

Learn how to calculate the net present value (NPV) of your investment projects using Excel's XNPV function.

Microsoft Excel 2010 provides a formula for calculating the average value from multiple worksheets in a workbook. Before you apply this formula, check that each worksheet is formatted the same way.

Fortunately, Excel offers a built-in function, DATEDIF, which makes it easy to calculate elapsed calendar time.