There are many reasons you might want to protect an Excel worksheet with Read-only mode. Maybe you don't want someone to erase data from a workbook accidentally, or you want to make sure a file is not ...

Excel allows you to lock specific areas of a sheet with a password or protect the entire workbook. You can also set an Excel file to open in read-only mode and ...

Formulas are one of the most important components of an Excel sheet and as such, deserve–warrant–protection. You don’t want users accidentally changing formulas and impacting the purpose of your work.

You never know when one of your files might reach someone it wasn't intended to reach—perhaps through an email forward, a USB stick left behind on a desk, or maybe ...

A recommended approach to secure your most private documents — whether it’s a PDF, Word file, or Excel spreadsheet — is to lock them with a passcode. While this does help keep sensitive content safe, ...