RAR is a free compression program that offers a range of features, including archiving, backup, and file management. It can create RAR and ZIP files and unpack archives in various formats, such as RAR, ZIP, TAR, GZ, BZ2, XZ, 7z, ISO, and ARJ. The program also includes a repair command for damaged ZIP and RAR files, a benchmark function, recovery record, encryption, solid archives, and the ability to utilize multiple CPU cores to compress data.<br/><br/>In addition to standard ZIP files, RAR supports ZIP and ZIPX with BZIP2, LZMA, PPMd, and XZ compression, as well as password-protected ZIP files. The program also includes an Unrar command for all versions of RAR archives, including the latest RAR5, password-protected, and multipart files. File management functions include copying, deleting, moving, and renaming files and folders, creating new folders, and installing applications from APK packages.<br/><br/>If you want to help translate RAR to your language, you can download RAR for Android language files from the "RAR extras" section of www.rarlab.com and follow the instructions in the readme.txt file. <br/><br/>Overall, RAR is a versatile and easy-to-use compression program that offers a range of features for archiving, backup, and file management. Its support for various archive formats and password protection make it a useful tool for managing and sharing files.