Since this file name doesn't appear to be a widely known software or media package, please be cautious:
If your browser tries to download it as a .php file or a generic attachment , you may need to manually rename it back to .rar to open it correctly. Download Bami12HRs rar
However, if you have found a link and are looking to handle the file, here is what you need to know about working with .rar archives: Managing .RAR Files Since this file name doesn't appear to be
After extracting, ensure the internal files match what you expect (e.g., .mp4 for video, .exe for software). Be wary of unexpected executable files. .mp4 for video