Format
Microsoft Access Database File
Summary
- Name
- Microsoft Access Database File
- Version
- 2.0
- Identifiers
-
- Library of Congress Format Description Identifier: fdd000462
- Wikidata QID Identifier: Q48004607
- PUID: x-fmt/66
- Format type
- Database
- Description
- Microsoft Access Database File, formerly known as Jet MDB Database format, is propriatory file format developed and used by Microsoft as a native format for its Microsoft Access (formerly Microsoft Jet Database Engine) desktop database management system. First released in 1992, starting with version 1.0 the earlier versions of the database used the Jet Database Engine, with version 1.0 having a maximum size of 128 megabytes, then increasing to 1 gigabyte with versions 1.1 and 2.0. This entry records the version 2.0 of MDB file format, for a full list of versions please follow the links provided in the Notes section.
- Format encoding
- Text
- Note
- https://web.archive.org/web/20220711181532/http://fileformats.archiveteam.org/wiki/Access https://web.archive.org/web/20220901011824/https://en.wikipedia.org/wiki/Microsoft_Access https://web.archive.org/web/20220825195028/https://www.loc.gov/preservation/digital/formats/fdd/fdd000462.shtml
- File extensions
-
mdb,mda - Submitted by
- Digital Preservation Department / The National Archives
- Developed by
- Microsoft Corporation
Relationships
- Is previous version of
- Is subsequent version of
- Is supertype of
Internal signatures
Microsoft Access Database File 2.0
- Description
- BOF; Offset: 0; Magic Bytes: Access database header 0x01000000, then an exact gap of 1026 bytes followed by 0x5269636809
- Provenance
- DROID 5.0 research. Signature then adjusted on 20th December 2022, after submission from The Church of Jesus Christ of Latter-day Saints.
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- None
- Byte Sequence
01000000{1026}5269636809- Endianness
- Little-endian
Changelog
-
V112
- Release date
- 10 May 2023
-
Updated
Microsoft Access Database File 2.0: Updated Wikidata QID. Submitted by National Library of the Netherlands.
-
V110
- Release date
- 14 March 2023
-
Added signature
Microsoft Access Database File 2.0: Signature researched and samples provided by The Church of Jesus Christ of Latter-Day Saints.
-
Updated
Microsoft Access Database File 2.0: Updated file format name, signature and description, added extension .mda. Submitted by The Church of Jesus Christ of Latter-Day Saints.
-
V34
- Release date
- 2 April 2010
-
Added signature
Microsoft Access Database 2.0: Signature developed through DROID 5.0 research