Some of these handle slightly different file types, but for most people, WinRAR is sufficient for most needs. There are plenty of decent alternatives to WinRAR around, such as 7-Zip, PeaZip, and WinZip. These options are accompanied by WinRAR’s red, blue, and green logo of three books bound together with a belt. Once it’s installed, or if it’s already on your PC, you’ll find it offers multiple options once you right-click on a compatible file.
If you need to install it, you’ll have to run the winrar.exe file and follow the on-screen instructions.