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<PRONOM-Report xmlns="http://pronom.nationalarchives.gov.uk">
  <report_format_detail>
    <FileFormat>
      <FormatID>353</FormatID>
      <FormatName>Microsoft Access Database File</FormatName>
      <FormatVersion>2002</FormatVersion>
      <FormatAliases>Microsoft Access Database (XP)</FormatAliases>
      <FormatFamilies>
      </FormatFamilies>
      <FormatTypes>Database</FormatTypes>
      <FormatDisclosure>
      </FormatDisclosure>
      <FormatDescription>Microsoft Access Database File, formerly known as Jet MDB Database format, is proprietary 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 Microsoft Access 2002 utilizing the Jet 4.0 database engine. The page size of the Jet 4.0 database engine is 4096 bytes. The .mde extension refers to protected Access database file with compiled VBA and macros. This entry records the version 2002 of MDB file format, for a full list of versions please follow the links provided in the Notes section.</FormatDescription>
      <BinaryFileFormat>Text</BinaryFileFormat>
      <ByteOrders>
      </ByteOrders>
      <ReleaseDate>
      </ReleaseDate>
      <WithdrawnDate>
      </WithdrawnDate>
      <ProvenanceSourceID>1</ProvenanceSourceID>
      <ProvenanceName>Digital Preservation Department / The National Archives</ProvenanceName>
      <ProvenanceSourceDate>02 Aug 2005</ProvenanceSourceDate>
      <ProvenanceDescription>
      </ProvenanceDescription>
      <LastUpdatedDate>02 May 2023</LastUpdatedDate>
      <FormatNote>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

http://web.archive.org/web/20111115230803/http://support.microsoft.com/kb/178883</FormatNote>
      <FormatRisk>
      </FormatRisk>
      <TechnicalEnvironment>
      </TechnicalEnvironment>
      <FileFormatIdentifier>
        <Identifier>fdd000462</Identifier>
        <IdentifierType>Library of Congress Format Description Identifier</IdentifierType>
      </FileFormatIdentifier>
      <FileFormatIdentifier>
        <Identifier>Q48021763</Identifier>
        <IdentifierType>Wikidata QID Identifier</IdentifierType>
      </FileFormatIdentifier>
      <FileFormatIdentifier>
        <Identifier>x-fmt/241</Identifier>
        <IdentifierType>PUID</IdentifierType>
      </FileFormatIdentifier>
      <Developers>
        <DeveloperID>93</DeveloperID>
        <DeveloperName>
        </DeveloperName>
        <OrganisationName>Microsoft Corporation</OrganisationName>
        <DeveloperCompoundName>Microsoft Corporation</DeveloperCompoundName>
      </Developers>
      <ExternalSignature>
        <ExternalSignatureID>340</ExternalSignatureID>
        <Signature>mdb</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <ExternalSignature>
        <ExternalSignatureID>3311</ExternalSignatureID>
        <Signature>mde</Signature>
        <SignatureType>File extension</SignatureType>
      </ExternalSignature>
      <InternalSignature>
        <SignatureID>274</SignatureID>
        <SignatureName>MS Access 2002/3</SignatureName>
        <SignatureNote>Jet 4 DB header plus variably-positioned AccessVersion 09. Two byte sequences. First byte sequence character sequence, Standard Jet DB. Second byte sequence character sequence, A c c e s s V e r s I o n{0-2048} 0 9 . [0:9] [0:9]</SignatureNote>
        <ByteSequence>
          <ByteSequenceID>352</ByteSequenceID>
          <PositionType>Absolute from BOF</PositionType>
          <Offset>0</Offset>
          <MaxOffset>
          </MaxOffset>
          <IndirectOffsetLocation>
          </IndirectOffsetLocation>
          <IndirectOffsetLength>
          </IndirectOffsetLength>
          <Endianness>Little-endian</Endianness>
          <ByteSequenceValue>000100005374616E64617264204A65742044420001000000</ByteSequenceValue>
        </ByteSequence>
        <ByteSequence>
          <ByteSequenceID>353</ByteSequenceID>
          <PositionType>Variable</PositionType>
          <Offset>
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          <MaxOffset>
          </MaxOffset>
          <IndirectOffsetLocation>
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          <IndirectOffsetLength>
          </IndirectOffsetLength>
          <Endianness>Little-endian</Endianness>
          <ByteSequenceValue>410063006300650073007300560065007200730069006F006E{0-2048}300039002E00[30:39]00[30:39]</ByteSequenceValue>
        </ByteSequence>
      </InternalSignature>
      <RelatedFormat>
        <RelationshipType>Is previous version of</RelationshipType>
        <RelatedFormatID>1015</RelatedFormatID>
        <RelatedFormatName>Microsoft Access Database File</RelatedFormatName>
        <RelatedFormatVersion>2007</RelatedFormatVersion>
      </RelatedFormat>
      <RelatedFormat>
        <RelationshipType>Is subsequent version of</RelationshipType>
        <RelatedFormatID>352</RelatedFormatID>
        <RelatedFormatName>Microsoft Access Database File</RelatedFormatName>
        <RelatedFormatVersion>2000</RelatedFormatVersion>
      </RelatedFormat>
    </FileFormat>
    <SearchCriteria>Criteria</SearchCriteria>
  </report_format_detail>
</PRONOM-Report>
