Converting music -mac to windows- (1 Viewer)

[Chickadee]

hope someone can help me? I got music of a mac and now want to put it on a PC in Itunes. The files have turned to .file exe! How do i change them so that windows can read them?

 

[aaron.mac]

rename them to .mp3 or .m4a, whichever they where encoded in (If it was AAC, m4a)

--Aaron.