Source safe
The original RAF file is never modified. HDR RAF Extractor inspects files locally and exports only what you choose.
Export Fujifilm HDR RAF files into separate DNG frames.
HDR RAF Extractor is a native macOS app for Fujifilm HDR RAF files. It opens supported three-frame Fujifilm HDR RAF files, shows the metered, under, and over frames, and exports selected frames as separate DNG files. The original RAF is never modified.
Available now on the Mac App Store
Scan to view in the Mac App Store 
Inspect & review
See the three embedded frames with EV values, preview, camera model, and exposure metadata.
Export as DNG
Export the frames you need as native DNG files with accurate metadata written at export time.