While Windows does have some built-in support for file compression, it's pretty limited, and definitely not enough even for a slightly more advanced user. You don't have to be doing rocket surgery or ...

7-Zip is a free, open-source file archiver with a high compression ratio. This software can be used on any computer, including the ones in a commercial organization.

Earlier this year, we reported on Microsoft expanding its compression support in Windows 11 to include native RAR, 7-Zip, and other file formats that aren't your basic ZIP files.

To open an IMG file and view the contents in Windows 7, you need a third-party file extraction program such as WinRar or 7-Zip.

8 Zip, a popular file archiver for Windows Phone and Windows 8.1, is now available as a native Windows 10 app in both its free and paid versions.