OStatic

I just downloaded a few torrent files (movies) and the contents of the folder have multiple files with the .rxx extension. I realize that these are compressed .rar files but can't find a way to extract them all into a single, combined file that would allow me to play the movie.

I have Google'd this but haven't been able to find an appropriate response for the mac. PC users can download WinRAR and extract these quite simply from what I understand