music files

Comcast Corp. has agreed to pay up to $16 million to settle a class-action lawsuit accusing the cable TV operator of delaying transfers of large movie and music files despite promises of unfettered Internet access.

Hi,

A friend recently gave me a bunch of compressed (not illegal) music files, which I have absolutely no idea how to open or decompress.

Each file seems to be in 3 parts/files with a pattern in the file sizes.

For example:
AXELPIN.11c is 539kb
AXELPIN.22c is 1078kb (539 * 2)
AXELPIN.44c is 2156kb (1078 * 2)

All other files follow the same pattern, albeit with different file sizes.