File Extension SAD File Format Lucas Arts sound file SAD stands for Lucas Arts sound file. This was last updated in March 2012 By Margaret Rouse Browse File Extensions Alphabetically: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # Ask a Question. Find an Answer. Ask your peers a question about this file extension. Ask a Question My inside look at the world of Star Wars Sound from .net Always wanted to run a Death Star?