.ofs

OptimFROG lossless compressed audio file, played by OptimFROG-compatible players

Dedicated renderer

Format facts

MIME type: audio/x-optimfrog
Apple UTI: custom
Stock Quick Look: no stock preview
Planned approach (census): metadata-only
Icon hint: generic-icon
Prevalence: rare

Renderer note (from the census)

parse OFR header

Gotchas: obsolete lossless