It comes out of a program called Frosty and is a dds file that I try to open. The save is with Intel Texture Works saving back to a dds file with BC3 8bpp (linear). I follow the same process from start to finish as all the rest of the saves (attached photo below of the outcome) and I only have issues with two graphics that open up looking like an Alpha and not a layer.
In this one, the commentators box has been modded to reflect the FOX NFL commentators and its all good.