Compressed archives like are frequently used to distribute software, but they can also hide malware. Always scan the file with antivirus software before extracting, and only open it if you trust the source from which it was downloaded. To help you further, could you tell me: Where you found this specific file? What operating system (Windows, Mac, etc.) you are using? If you are getting an error when trying to open it?
The file is a compressed RAR archive . RAR files are proprietary Roshal Archive containers used to store one or more files in a compressed state to save space and facilitate easier transfer. Core Features of RAR Files RJ415300.rar
Because the RAR format is proprietary, standard Windows or macOS utilities cannot always open them natively. You will need a third-party tool: Compressed archives like are frequently used to distribute
: The official tool for creating and managing these files. What operating system (Windows, Mac, etc
: A popular free and open-source alternative that can extract RAR files.
This will help me give you specific instructions for your device. RAR – Apps on Google Play