7-Zip : A popular, free, and open-source alternative that can extract RAR files.
To open or inspect the contents of a .rar file safely, you can use established archiving tools: balloc.rar
Because .rar files are frequently used to package multiple files for transport, they are also a common delivery method for malware. If you downloaded "balloc.rar" from an untrusted source, such as a third-party file-sharing site or an unsolicited email, consider the following: 7-Zip : A popular, free, and open-source alternative