{
  "fileFormatID": 133,
  "formatName": "Microsoft PowerPoint Presentation",
  "version": "4.x",
  "formatDescription": "Microsoft PowerPoint Presentation is a proprietary binary file format developed by Microsoft Corporation used to store presentation files created in the Microsoft PowerPoint presentation software. This record describes version 4 of .ppt file format released in February 1994 for Windows, and included in the 4.2 version of Microsoft Office for Windows released in the same year. Versions up to version 4 of Microsoft PowerPoint use .ppt as extension however, they are not compatible with each other. Microsoft made backwards compatibility an optional add-on after Office 2003 and appears to have removed it altogether in Office 2010. Please follow the links attached to this entry for more information.",
  "releaseDate": null,
  "binaryFileFormat": "Text",
  "formatNote": "https://www.loc.gov/preservation/digital/formats/fdd/fdd000511.shtml\r\n\r\nhttp://justsolve.archiveteam.org/wiki/PPT\r\n\r\nhttps://web.archive.org/web/20220329174106/https://en.wikipedia.org/wiki/Microsoft_PowerPoint",
  "lastUpdatedDate": "24 Aug 2022",
  "formatProvenance": null,
  "formatSourceDate": "02 Aug 2005",
  "formatDisclosure": null,
  "formatEnvironment": null,
  "formatRisk": null,
  "formatAliases": null,
  "formatTypes": "Presentation",
  "formatFamilies": null,
  "identifiers": [
    {
      "identifierText": "application/vnd.ms-powerpoint",
      "identifierType": "MIME"
    },
    {
      "identifierText": "com.microsoft.powerpoint.ppt",
      "identifierType": "Apple Uniform Type Identifier"
    },
    {
      "identifierText": "x-fmt/88",
      "identifierType": "PUID"
    }
  ],
  "internalSignatures": [
    {
      "signatureID": 181,
      "name": "PowerPoint 4.0",
      "note": "Compound document header + PowerPoint Document user stream + version number (pp40)",
      "byteSequences": [
        {
          "positionType": "Absolute from BOF",
          "offset": 0,
          "maxOffset": null,
          "byteSequence": "D0CF11E0A1B11AE1{20}FEFF",
          "endianness": null,
          "byteSequenceID": 218
        },
        {
          "positionType": "Variable",
          "offset": null,
          "maxOffset": null,
          "byteSequence": "5000500034003000",
          "endianness": null,
          "byteSequenceID": 219
        },
        {
          "positionType": "Variable",
          "offset": null,
          "maxOffset": null,
          "byteSequence": "4D6963726F736F667420506F776572506F696E74",
          "endianness": null,
          "byteSequenceID": 220
        }
      ]
    }
  ],
  "externalSignatures": [
    {
      "externalSignature": "ppt",
      "signatureType": "File extension"
    }
  ],
  "relationships": [
    {
      "relationshipType": "Has priority over",
      "relatedFormatID": 135,
      "relatedFormatName": "Microsoft Powerpoint Presentation",
      "relatedFormatPUID": "fmt/126"
    },
    {
      "relationshipType": "Has priority over",
      "relatedFormatID": 767,
      "relatedFormatName": "OLE2 Compound Document Format",
      "relatedFormatPUID": "fmt/111"
    },
    {
      "relationshipType": "Is previous version of",
      "relatedFormatID": 134,
      "relatedFormatName": "Microsoft Powerpoint Presentation",
      "relatedFormatPUID": "fmt/125"
    },
    {
      "relationshipType": "Is subsequent version of",
      "relatedFormatID": 2594,
      "relatedFormatName": "Microsoft PowerPoint Presentation",
      "relatedFormatPUID": "fmt/1748"
    }
  ],
  "supportedBy": [
    93
  ],
  "developedBy": [
    93
  ],
  "containerSignatures": [
    {
      "containerType": "OLE2",
      "id": "3130",
      "description": "Microsoft Powerpoint 4 OLE2",
      "files": [
        {
          "path": "PP40"
        }
      ]
    }
  ],
  "submittedBy": [
    1
  ]
}