@LeeC2202 No problem thanks for that link but for the ymt files, that link won't be able to do the job.
I've managed to get to find a xml converted version of the vanilla carcols.ymt on here, it didn't contain data for all the vehicles in the game, i.e the one i'm currently after data for is the Emperor.
I have also just noticed on the OpenIV website they have got working the functions to convert the ymt files, so its only a matter of time that OpenIV will be updated.
Getting these ymt files decrypted can open up a hell of alot more modding.