I am at the stage of analysing the Art in Fallout2. Specificaly the Critters animations in Critters.dat To fully understand these animations I decided to index them. I started with HANPWR series of FRMs which correspond to the Adv. Power Armor Anims. I now fully understand the extensions however, for fun I wanted to compare them to other character anims. So I went on to the HAPOWR (Power Armor) series of FRMs. It is here that I noticed something a bit odd about the death animations, and the death anims for other older FRMs such as leather, vault suit, etc. Here it is, the death anims carry the file extension .FR0, .FR1, & so on. That of which FRMworkshop does not recognize. On a hunch, I renamed one .FRM so I could open it in FRMworkshop. Voila, the animations are displayed correctly. What I dont understand is how the game uses the .FR# extensions when FRMs are already the standard. Could someone explain why this is?