How to lock cells in Microsoft Excel, so you need a password to change or erase data

You can lock cells in Excel by heading into the program's "Protection" tab. There, you can set a password, and protect your ...

How to edit a drop-down list in Excel, depending on how you created it

To edit a drop-down list in Excel, you can use a number of tools depending on how you created the list. Here's what you need ...