{
  "fileFormatID": 2623,
  "formatName": "Calc602 Spreadsheet File",
  "version": null,
  "formatDescription": "\tFiles generated by Calc602, a spreadsheet programme made by Software602 which was released in 1988 by then Czechoslovakian company 602 Svazarm (since the 1990s known as IT company Software602). Tc6 is the native file format for Calc602.The .bak file backs up content, and has exactly the same internal signature as the tc6 file.",
  "releaseDate": null,
  "binaryFileFormat": null,
  "formatNote": null,
  "lastUpdatedDate": "03 Oct 2022",
  "formatProvenance": null,
  "formatSourceDate": "03 Oct 2022",
  "formatDisclosure": null,
  "formatEnvironment": null,
  "formatRisk": null,
  "formatAliases": null,
  "formatTypes": "Text (Structured)",
  "formatFamilies": null,
  "identifiers": [
    {
      "identifierText": "fmt/1773",
      "identifierType": "PUID"
    }
  ],
  "internalSignatures": [
    {
      "signatureID": 2111,
      "name": "\tCalc602 Spreadsheet file",
      "note": "BOF Absolute from beginning of file, magic bytes: Software602 Calc602 v.{1-4} Tabulka",
      "byteSequences": [
        {
          "positionType": "Absolute from BOF",
          "offset": 0,
          "maxOffset": 0,
          "byteSequence": "536F6674776172653630320D0A43616C6336303220762E{1-4}20546162756C",
          "endianness": null,
          "byteSequenceID": 2450
        }
      ]
    }
  ],
  "externalSignatures": [
    {
      "externalSignature": "bak",
      "signatureType": "File extension"
    },
    {
      "externalSignature": "tc6",
      "signatureType": "File extension"
    }
  ],
  "relationships": [
    {
      "relationshipType": "Has lower priority than",
      "relatedFormatID": 2533,
      "relatedFormatName": "Calc602 Spreadsheet file",
      "relatedFormatPUID": "fmt/1697"
    },
    {
      "relationshipType": "Has lower priority than",
      "relatedFormatID": 2534,
      "relatedFormatName": "Calc602 Spreadsheet file",
      "relatedFormatPUID": "fmt/1698"
    }
  ],
  "supportedBy": [
    4
  ],
  "developedBy": [
    4
  ],
  "submittedBy": [
    242
  ]
}