.qlcache

macOS Quick Look Cache

Not a file (scheme/atom)

Format facts

MIME type: application/x-qlcache
Apple UTI: custom
Stock Quick Look: no stock preview
Planned approach (census): not-a-file
Icon hint: generic-icon
Prevalence: rare

Renderer note (from the census)

parse qlcache header for thumbnail data

Gotchas: macOS Quick Look cache