To apply data validation rules to a selected cell or range, head to the "Data" tab on the ribbon, and click the top half of ...

I don’t use Microsoft Excel all that often, so it remains a bit of a mystery to me. I can enter text and create graphs and ...

You can use Excel, Microsoft's spreadsheet program, to store, organize, and analyze data in a number of ways.

You can turn any Mac folder into a disk image to lock its contents behind a password. Here's how to password protect your ...