{
  "fileFormatID": 20,
  "formatName": "dBASE Database",
  "version": "IV",
  "formatDescription": "dBase is a database management systems for microcomputers.The dBase system includes the core database engine, a query system, a forms engine, and a programming language that ties all of these components together. dBase's underlying file format, the .dbf file, is widely used in applications needing a simple format to store structured data.",
  "releaseDate": null,
  "binaryFileFormat": "Text",
  "formatNote": null,
  "lastUpdatedDate": "09 May 2023",
  "formatProvenance": "Further information about the dBASE file format can be obtained at http://www.digitalpreservation.gov/formats/fdd/fdd000325.shtml",
  "formatSourceDate": "10 Oct 2003",
  "formatDisclosure": null,
  "formatEnvironment": null,
  "formatRisk": null,
  "formatAliases": null,
  "formatTypes": "Database",
  "formatFamilies": null,
  "identifiers": [
    {
      "identifierText": "application/dbase",
      "identifierType": "MIME"
    },
    {
      "identifierText": "x-fmt/10",
      "identifierType": "PUID"
    }
  ],
  "internalSignatures": [
    {
      "signatureID": 544,
      "name": "dBASE Database IV without memo",
      "note": "Header sequence: Version number (04), Date of last update MMDD, First upper or lowercase character of field name, field type (C, D, F, L, N).",
      "byteSequences": [
        {
          "positionType": "Absolute from BOF",
          "offset": 0,
          "maxOffset": null,
          "byteSequence": "04??[01:0C][01:1F]{28}([41:5A]|[61:7A]){10}(43|44|46|4C|4E)",
          "endianness": null,
          "byteSequenceID": 675
        }
      ],
      "provenance": "Ongoing DROID research, in conjunction with information obtained from the Sustainability of Digital Formats Planning for Library of Congress Collections website http://www.digitalpreservation.gov/formats/fdd/fdd000325.shtml"
    },
    {
      "signatureID": 545,
      "name": "dBASE Database IV SQL table files, no memo",
      "note": "Header sequence: Version number, Date of last update MMDD, First upper or lowercase character of field name, field type (C, D, F, L, N).",
      "byteSequences": [
        {
          "positionType": "Absolute from BOF",
          "offset": 0,
          "maxOffset": null,
          "byteSequence": "43??[01:0C][01:1F]{28}([41:5A]|[61:7A]){10}(43|44|46|4C|4E)",
          "endianness": null,
          "byteSequenceID": 676
        }
      ],
      "provenance": "Ongoing DROID research, in conjunction with information obtained from the Sustainability of Digital Formats Planning for Library of Congress Collections website http://www.digitalpreservation.gov/formats/fdd/fdd000325.shtml"
    },
    {
      "signatureID": 546,
      "name": "dBASE Database IV SQL system files, no memo",
      "note": "Header sequence: Version number, Date of last update MMDD, First upper or lowercase character of field name, field type (C, D, F, L, N).",
      "byteSequences": [
        {
          "positionType": "Absolute from BOF",
          "offset": 0,
          "maxOffset": null,
          "byteSequence": "63??[01:0C][01:1F]{28}([41:5A]|[61:7A]){10}(43|44|46|4C|4E)",
          "endianness": null,
          "byteSequenceID": 677
        }
      ],
      "provenance": "Ongoing DROID research, in conjunction with information obtained from the Sustainability of Digital Formats Planning for Library of Congress Collections website http://www.digitalpreservation.gov/formats/fdd/fdd000325.shtml"
    },
    {
      "signatureID": 547,
      "name": "dBASE Database IV SQL table files, with memo",
      "note": "Header sequence: Version number, Date of last update MMDD, First upper or lowercase character of field name, field type (C, D, F, L, M, N).",
      "byteSequences": [
        {
          "positionType": "Absolute from BOF",
          "offset": 0,
          "maxOffset": null,
          "byteSequence": "CB??[01:0C][01:1F]{28}([41:5A]|[61:7A]){10}(43|44|46|4C|4D|4E)",
          "endianness": null,
          "byteSequenceID": 678
        }
      ],
      "provenance": "Ongoing DROID research, in conjunction with information obtained from the Sustainability of Digital Formats Planning for Library of Congress Collections website http://www.digitalpreservation.gov/formats/fdd/fdd000325.shtml"
    },
    {
      "signatureID": 548,
      "name": "dBASE Database IV, with memo (7B byte)",
      "note": "Header sequence: Version number, Date of last update MMDD, First upper or lowercase character of field name, field type (C, D, F, L, M, N).",
      "byteSequences": [
        {
          "positionType": "Absolute from BOF",
          "offset": 0,
          "maxOffset": null,
          "byteSequence": "7B??[01:0C][01:1F]{28}([41:5A]|[61:7A]){10}(43|44|46|4C|4D|4E)",
          "endianness": null,
          "byteSequenceID": 679
        }
      ],
      "provenance": "Ongoing DROID research, in conjunction with information obtained from the Sustainability of Digital Formats Planning for Library of Congress Collections website http://www.digitalpreservation.gov/formats/fdd/fdd000325.shtml"
    },
    {
      "signatureID": 549,
      "name": "dBASE Database IV, with memo (8B byte)",
      "note": "Header sequence: Version number, Date of last update MMDD, First upper or lowercase character of field name, field type (C, D, F, L, M, N).",
      "byteSequences": [
        {
          "positionType": "Absolute from BOF",
          "offset": 0,
          "maxOffset": null,
          "byteSequence": "8B??[01:0C][01:1F]{28}([41:5A]|[61:7A]){10}(43|44|46|4C|4D|4E)",
          "endianness": null,
          "byteSequenceID": 680
        }
      ],
      "provenance": "Ongoing DROID research, in conjunction with information obtained from the Sustainability of Digital Formats Planning for Library of Congress Collections website http://www.digitalpreservation.gov/formats/fdd/fdd000325.shtml"
    },
    {
      "signatureID": 550,
      "name": "dBASE Database IV, with SQL",
      "note": "Header sequence: Version number, Date of last update MMDD, First upper or lowercase character of field name, field type (C, D, F, L, M, N).",
      "byteSequences": [
        {
          "positionType": "Absolute from BOF",
          "offset": 0,
          "maxOffset": null,
          "byteSequence": "8E??[01:0C][01:1F]{28}([41:5A]|[61:7A]){10}(43|44|46|4C|4D|4E)",
          "endianness": null,
          "byteSequenceID": 681
        }
      ],
      "provenance": "Ongoing DROID research, in conjunction with information obtained from the Sustainability of Digital Formats Planning for Library of Congress Collections website http://www.digitalpreservation.gov/formats/fdd/fdd000325.shtml"
    }
  ],
  "externalSignatures": [
    {
      "externalSignature": "dbf",
      "signatureType": "File extension"
    }
  ],
  "relationships": [],
  "supportedBy": [
    80
  ],
  "developedBy": [
    80
  ],
  "submittedBy": [
    1
  ]
}