Whenever you create a new Excel document, you are opening what is called a "workbook." Each workbook can have multiple worksheets. If your small business sells fruit, you might have an Excel workbook ...

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.

Q. Some of my Excel spreadsheets contain many worksheets—up to 36 in some cases. But not all the worksheet tabs show at the bottom of the screen. Is there some way to make more tabs visible, such as ...