Sorry for a newbie question. I am seeking to try out a freeware addon mesh package I downloaded from the Avsim library. How does one extract files from a BBL file? Thanks in advance for any assistance.JF

Assuming you mean BGL and not BBL (you used both terms) the BGL is the final usable file that FS9 uses, no need to extract it any more. FS9 scenery folders are full of BGL files.What scenery are you talking about and what is it you are trying to do. That way someone should be able to steer you in the right direction.