If you are having trouble opening the file, these are the standard tools:

: A free, open-source alternative that supports a wide range of formats including RAR extraction.

: If your pack contains many small, similar files, WinRAR's "Solid" archiving significantly improves the compression ratio by treating multiple files as one continuous data stream.

: You can convert your .rar into an .exe file. This allows users to extract the contents even if they don't have WinRAR or 7-Zip installed. Recommended Extraction Tools

: To speed up extraction or creation, group similar files together in the archive. Placing frequently accessed files at the beginning of the list can also improve operation speed.

Could you clarify if is for a specific game or software (like a mod or asset pack) so I can provide more tailored instructions? nbdn/build_tools/winrar/Rar.txt at master - GitHub

: The native application for RAR files, offering advanced features like password protection and file locking.