Lend a hand

Very newbie question here-

My friend sent me Civilization 3, and after the transfer I was left with 3 files, .img, .sub, and .cdc. The IMG file obviously being the bulk of the transfer.
I know I am supposed to use clonecd somehow, but I just spent an hour screwing around with it to no avail…all I want is to play this game!

Can someone lend me a hand here?

The thing is that if you don’t own the original then you shouldn’t have a copy of the game. It’s called piracy.

Please go and buy a copy of the game if you want to play it.