You can password-protect your Microsoft Excel spreadsheets to prevent unauthorized people from opening or editing them. If you only block edits, anyone can open your ...

To lock your cells in Microsoft Excel, you just need to head into the program's "Protection" tab. Locking a cell in Excel will make it so viewers can't change the data inside of that cell, which is ...

If you want to set an expiration date and password when sharing Excel files online, here is how you can do that. It is possible to do both of them when using Excel Online. That said, you do not need ...