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. Clicking the "Insert Worksheet" button ...

To add a sheet to a workbook using VBA: Depending on the result you want to achieve, you can either use the: Copy method => For a copy of an existing sheet Add method => To add a new blank sheet to ...

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.