AppleDouble Resource Fork

Name: AppleDouble Resource Fork

Version: 2

Description: 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:

The format lacks an extension, and is instead represented by a file name consisting of ._

Deprecated: false

MIMEType: multipart/appledouble

PUID: fmt/503

sameAs : PRONOM:


Magic: true

Container Magic: false

Binary Magic: true

Signature Priority Over:

See Also (e.g. Wikidata, Library of Congress):

Software that can read the format:



Type: []()