FL Studio State File
From Just Solve the File Format Problem
A FL Studio State File is used by FL Studio / FruityLoops to save a state. No, you can't use it to save Florida; that's a different sort of state. In this case, it saves generator and effects presets as part of channel settings.
Sample files
- 26 free SimSynth presets (claims to be SimSynth Presets, but the files are .fst)