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.

Microsoft Excel's VLookup formula permits you to search large spreadsheets for specific data, one of Excel's lookup and reference functions. You can use VLookup between sheets within an Excel workbook ...

There are a great many keyboard shortcuts you can use to work with Excel more efficiently. For a handy reference to all of them, some which work in other Office programs, Microsoft offers these PDF ...