Excel has over 475 formulas in its Functions Library, from simple mathematics to very complex statistical, logical, and engineering tasks such as IF statements (one of our perennial favorite stories); ...
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.
If you need to average a list of values in Microsoft Excel that contain duplicates without including the duplicates, don’t fret over a complex expression when you can easily remove those duplicates.