In Microsoft Excel, a program packaged with Microsoft Office, you can create databases of information and then make calculations, graphs and charts based on that data. It's a handy program to have if ...

The foundation of Excel is a workbook. Each Excel workbook is a separate document, within which you create one or several worksheets.

Applying the same formatting to each sheet in an Excel workbook is ideal when each of your sheets is set up the same, but it can be helpful in other circumstances as well.