Microsoft Excel has been one of the go-to spreadsheet apps for several decades, and it's developed an array of tricks throughout its lifetime, not just for making data entry, editing, and organization ...

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, ...

Adding password protection to your business' PDF files helps to prevent contents from being viewed or edited by unwanted parties. If your business already has Adobe Acrobat, the application's ...