.sketch

Sketch Design

Handled by macOS itself

Format facts

MIME type: application/zip
Apple UTI: com.bohemiancoding.sketch3
Stock Quick Look: a ZIP-based container
Planned approach (census): native-sufficient
Icon hint: renders
Prevalence: common

Renderer note (from the census)

macOS renders Sketch files natively if app is present

Gotchas: zip container fallback