The JSF file extension is associated with Java. The .jsf files are used for Java server files. Internet related file, dynamically generated webpage.
The JSF file extension is used for Adobe (formerly Macromedia) Fireworks, a bitmap and vector graphics editor marketed by Adobe as part of its Adobe Creative Suite. A ,jsf file is a batch script, that contain (almost) any sequence of program commands.
Jahshaka is an OpenSource Realtime Editing and Effects System.
Joystick configuration file used by Project64, a Nintendo 64 emulator for Windows; used for mapping the buttons of third-party joysticks and controllers to standard Nintendo 64 controls. Individual JSF files may be created for different types of controllers. This allows multiple third-party controllers to be used with Project64.