You can open RAR files on your Mac computer to share or download a large amount of files. Here's how to open RAR on a Mac with The Unarchiver.

You can password protect a folder in Windows 10 using a program called WinRar, which is free to download and use.

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, ...