DLC on Xbox 360 (Test Drive Unlimited)

Hello everyone! Are there people here who know how to rip DLC files on Xbox? I want to do this in order to import exclusive cars into the game. I took the files from here:
https://mega.az/file/1f4zQJhT#siek91-sKl8BXqlYC3WbQ1-iuF4XUqBvatqB9XcKtX8