Music file format: FLAC?

Hello guys, how can I play flac. files on my itunes? And if you're about to suggest the program Fluke, please tell me where I can download it? I have tried to download it almost 3 times but they don't have setup.exe just very strange files like dmg or something like that,... Can anyone link me to a understandable Fluke download? ^^ I am really hopeless at techno stuff; thanks a lot for helping me out! Much appreciated