.img

Raw Disk Image

Handled by macOS itself

Format facts

MIME type: application/x-raw-disk-image
Apple UTI: public.disk-image
Stock Quick Look: no stock preview
Planned approach (census): native-sufficient
Icon hint: renders
Prevalence: common

Renderer note (from the census)

macOS mounts IMG natively if FS is recognized

Gotchas: generic raw disk