Hi Nude Mod.
I must say nochamls, it is not. Dds files, but they are ave Upk files.
According to google are the most special kkonnen the archives are encrypted to boot.
In short there forums I've seen, should therefore various tools that can open these files under certain circumstances.
Can also specify the 3D Ripper DX
soclhe upk open files.
The link comes via PM.