EXCEL: Show Page Number

In Excel, when you want to show a footer, like a page number, simply choose the following:

1. View
2. Header and Footer
3. Left click on the Footer dropdown menu (toward bottom of page setup window)
4. Choose Page 1 of ?
5. OK

You've now added a page number to your Excel spreadsheet.  There are other options for headers and footers in these dropdowns, or you can create your own (custom header/footer).