Format
AppleSingle
Summary
- Name
- AppleSingle
- Version
- 2
- Identifiers
-
- MIME: application/applefile
- PUID: fmt/968
- Description
- Apple Computers created the AppleSingle format (as well as the AppleDouble format) to represent and preserve the attributes of files across files systems that do not support the same attributes of the file’s home systems. AppleSingle is primarily a storage format and contains both a file’s contents and attributes. It consists of a header and one or more optional data entries followed by the byte stream of the file it is storing. It maintains the original Macintosh filename and file type (e.g. Mydoc.pdf). The AppleSingle format can store a number of different kinds of formats.
- File extensions
-
as - Submitted by
- Digital Preservation Department / The National Archives
- Developed by
- Apple Computer, Inc.
- Supported by
- Apple Computer, Inc.
Relationships
- Is subsequent version of
Internal signatures
AppleSingle v2
- Description
- BOF: 4 byte AppleSingle Magic Number 0x00051600, then 4 byte version number 0x00020000
- Provenance
- https://tools.ietf.org/html/rfc1740
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 0
- Byte Sequence
0005160000020000- Endianness
- None
Changelog
-
V108
- Release date
- 5 September 2022
-
Updated
AppleSingle (2): New external signature .as added. Submitted by The Church of Jesus Christ of Latter-day Saints.
-
V88
- Release date
- 27 September 2016
-
Added format
AppleSingle 2: Full entry added. Submitted by Archives New Zealand.
-
Added signature
AppleSingle 2: Signature developed by Archives New Zealand.