downloaded addons from warmane forum post on a mac : error:

[lianielas]

There is no application set to open the document “Addon-Pack 3.3.5a.rar” is the error message , I don't know where to put it , thanks :)

edit : I quit in mists of pandaria so it's been a while but do I need curse? I tried to download a curse app like old time's and it's apparently just a streamlined twitch app now?