how to change .rar file

Hello everyone!!
I am kind of new in this wonderful Mac world. I have a new Macbook, and a friend sent me two .rar files. I downloaded them, but now I don't know how to unzip them and be able to listen to them in itunes.
Any help?
Thanks

Thank You very much.
it works perfectly.

i have Unrarx too, but here's my question, why doesn't apple already implement opening and unarchiving of the kinds of files?

kmkl said:

i have Unrarx too, but here's my question, why doesn't apple already implement opening and unarchiving of the kinds of files?

Click to expand...

Maybe it's just me, but I don't come across .rar files too often. Not much point in adding support for a little used compression type. Mac already supports zip, tar/gzip and bunzip so they are doing better than the other major OS.

But that's just my $0.02

Cheers