BSA Files
Revision as of 10:10, 17 May 2006 by imported>JOG (Reward 'em for using the search function...)
BSA (Bethesda Softworks Archive?) files are archives that contain all the game data.
To unpack them use one of these programs:
TES4BSA (If you use this one have a look at the BSA_Unpacker_Tutorial)