AppleDouble Resource Fork 1

Unknown

other

The resource fork is a construct of the Mac OS operating system used to store structured data in a file, alongside unstructured data stored within the data fork. The format specification is available here: http://support.apple.com/kb/TA32537?viewlocale=en_US The format lacks an extension, and is instead represented by a file name consisting of ._<filename resource fork belongs to>

Identify it

MIME types	`multipart/appledouble`
Signatures	`0005160700010000` at byte 0
PRONOM	`fmt/966`
Wikidata	`Q27578076`

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Open it

No software is recorded for this format — see its family, AppleDouble.

Convert it

No conversion recorded. One of the tools above may export it; search for a chain.

Sources

PRONOM fmt/966
Wikidata Q27578076

From PRONOM, Wikidata. Updated 2026-10-20.

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