Ripping stage models from Under Night Exe Late

[ElevenZM]

Hello, this is my first thread I've made on the site, so sorry if I do something wrong. I am trying to rip models/textures from the stages in UNDER NIGHT IN-BIRTH Exe Late (not [cl-r]). I have the "bg" folder containing each background. They are fbx and dds files. When I try to open any of them it says something about the header, so it seems they're encrypted. I'm not very familiar with byte editing. You guys think this can be done?