How do you open up .rar files on a mac

How can i open up .rar files on my mac. i use stuffit now but it keeps freezing when i try to compess and decompress large files. if you know of other programs please help me out.
Answer #1
same as every 1else, winrar
http://www.rarlab.com/download.htm
Answer #2
try rar expander. its beter than stuffit(which doesnt always work on rar files)
http://rarexpander.sourceforge.net/