Launch Microsoft Excel 2010 and open the spreadsheet you want to edit. Select the worksheet for which you want to insert the page number. Click the "View" tab on the upper side of the Excel window.

Instead, Excel allows you to add multiple sheets simultaneously. You are limited by the number of sheets you currently have, but you can repeat the process to add an increasing number of sheets.

Adding a running total to a simple Microsoft Excel revenue sheet isn't difficult, but adding a conditional running total will require a bit more effort. Solutions are simpler than you might think.