You'll need a RAR extraction tool like WinRAR (for Windows) or The Unarchiver (for macOS) to open and extract the contents of the .rar file.
FART.BUBBLE.DX.v1.1.4.rar is the compressed archive for Fart Bubble DX FART.BUBBLE.DX.v1.1.4.rar
If you meant to ask for an article on a different topic or a known software version (e.g., a legitimate audio plugin, game mod, or development tool), please clarify and I’ll be happy to write a detailed, helpful guide or review. You'll need a RAR extraction tool like WinRAR