How to Get your Skin in Game for: either a Single. MAS otherwise only the main body.dds will transfer. dds files which would cover e.g the skin, windows, driver, helmet etc these must be in a. mas creation however the skin file will be much larger than if compressed with the MAS tool thus taking longer for you to upload to the server and longer for drivers to download If it is just a single body.dds you can skip the.MAS file as we show below, but there are several benefits to do so: Whist the ISI guide shows that you do not need to add the files to a. Share your complete car, driver, helmet, gloves, windows, rims, all the extra's a car.