How to Open a ZIP File The easiest way to open a ZIP file is to double-click it and let your computer show you the folders and files contained inside.

To access any given file, you may need to convert it to a new format. For example, something your colleague created on a macOS word processor might not work on your Windows 10 computer.

This free Web service does one thing and does it well: changing your file formats instantly with no hassles.

Windows will open RAR files, but to convert files to RAR format, you can make use of WinRAR or these free online tools. We show you how!