So, I've been trying to edit some of the decals from Worsin's Power Armor mod, but my usual Paint.net (and a couple DDS editors I've downloaded specifically for this) gives errors when trying to open the decal files. I've spent a lot of time searching for solutions to this, but the answers mostly seem to be "the files are corrupted" (in which case, why does the game not have problems loading and showing them?), or 5+ year old links to outdated resources and programs. I've also tried to open GIMP up for the first time in ages (since I hate the UI), but GIMP 2.8 doesn't seem to be able to open any DDS files. So I've decided it might be time to ask for help. Is there anyone able to open the attached file properly, and if so, what program did you use?