The .sbk file extension also represents the backup file of the Flash animation software solution SWiSH, which is called by the main application in cases where the original file is damaged. Backup of a SWiSH Project (.SWI) file, a custom Flash animation format; created automatically by the SWiSH authoring program in case the original project file is lost or corrupted.
Collection of sound samples saved in the SoundFont format; recognized by E-MU hardware, SoundBlaster sound cards, and other software samplers. The SBK format was replaced by the .SF2 file format in SoundFont 2.
Files with the SBK extension identify a configuration file used with the ToolBook development software application. SBK files store data that is used by applications that have been created using the application, which is similar to Visual Basic programming language. SBK files can be opened using the ToolBook utility.