7-Zip Package Problem

Ok, so i haven't the slightest clue what's going on here. I download the 3rd Disc of Final Fantasy VII and the .7z package it comes in won't unzip. It comes up with the message "not a supported archive." I didn't have this problem with the other two disc's .7z package. If somebody out there has a solution to my problem, please contact me via E-mail: [email protected]

Download the lasted Winrar should do the trick

do u have 7-zip? because if not u should download it it hadels that types of files and it dos rar