Main files
-
Use if you have SKYRIM and all DLCs and USKPs
-
Skyrim and SOT and All DLCs and All USKP
-
use if you only have SKYRIM and the USKP for it
-
Use if you have SKYRIM and Dawnguard dlc and USKP
-
Use if you only have Skyrim and no USKP at all