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.

Use one or both of these simple Microsoft Excel macros to list all the sheets in an Excel workbook.

A complex Excel 2007 workbook could require multiple sheets. By default, Microsoft provides three sheets on each workbook, but you can add as many as you need.

Excel offers myriad options for referring to workbooks and sheets in your VBA code. See which methods make sense in which situations.