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  "formatName": "Lotus 1-2-3 Worksheet",
  "version": "9.8 Millennium",
  "formatDescription": "Lotus 1-2-3 Workbook is a spreadsheet program produced by the Lotus Software Group (later acquired by IBM). The original release was in 1983 and it has been discontinued since 2013.\r\n\r\nThe original 1-2-3 files have .wks extensions. Version 2.0 originally used a .wk1 extension but this was changed quickly to .wk2 and after this the number in the extension corrolates with the version number. Some later versions have the extension .123",
  "releaseDate": null,
  "binaryFileFormat": null,
  "formatNote": null,
  "lastUpdatedDate": "16 Oct 2021",
  "formatProvenance": null,
  "formatSourceDate": "16 Oct 2021",
  "formatDisclosure": null,
  "formatEnvironment": null,
  "formatRisk": null,
  "formatAliases": null,
  "formatTypes": "Spreadsheet",
  "formatFamilies": null,
  "identifiers": [
    {
      "identifierText": "application/vnd.lotus-1-2-3",
      "identifierType": "MIME"
    },
    {
      "identifierText": "application/x-123",
      "identifierType": "MIME"
    },
    {
      "identifierText": "fmt/1453",
      "identifierType": "PUID"
    }
  ],
  "internalSignatures": [
    {
      "signatureID": 1817,
      "name": "Lotus 1-2-3 Worksheet Version 9.8 Millennium",
      "note": "\tSection Record Type = 0, record length dec 26 = 1A; file format version number = hex 05100400",
      "byteSequences": [
        {
          "positionType": "Absolute from BOF",
          "offset": 0,
          "maxOffset": 0,
          "byteSequence": "00001A0005100400",
          "endianness": null,
          "byteSequenceID": 2109
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      ]
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  ],
  "externalSignatures": [
    {
      "externalSignature": "123",
      "signatureType": "File extension"
    }
  ],
  "relationships": [],
  "submittedBy": [
    248
  ]
}