File Extension SWB File Format Super Win- EBook 98 file SWB stands for Super Win- EBook 98 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 How can I solve my client login troubles? Name resolution issue with Win2k and WinXP Pro clients How do you force Win2k to do a complete hardware rebuild?