{
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  "formatName": "Microsoft Excel 2000-2003 Workbook (xls)",
  "version": "8X",
  "formatDescription": "The Binary Interchange File Format (BIFF) is a spreadsheet file format developed by Microsoft. BIFF 8X is a native file format of Microsoft Excel XP. The format is proprietary and Microsoft does not make details of its structure public. The information here is derived primarily from OpenOffice.org's reverse-engineered documentation of the format and should not therefore be regarded as definitive. BIFF 8X is based on Microsoft\u2019s generic OLE2 Compound Document Format. An Excel workbook is stored as a \u2018Book\u2019 stream within a Compound Document Format file. The Book stream comprises a Workbook Globals Substream, containing a Beginning of File (BOF) record, the Workbook global records, and terminated by an End of File (EOF) record. This is followed by one or more Worksheet substreams, containing a Beginning of File (BOF) record, the worksheet records, and terminated by an End of File (EOF) record. The format remained unchanged with the release of Excel 2003.",
  "releaseDate": null,
  "binaryFileFormat": "Binary",
  "formatNote": null,
  "lastUpdatedDate": "02 Aug 2005",
  "formatProvenance": null,
  "formatSourceDate": "11 Mar 2005",
  "formatDisclosure": "None",
  "formatEnvironment": null,
  "formatRisk": null,
  "formatAliases": "Microsoft Excel Workbook (XP-2003), Microsoft Excel Workbook (2002-2003)",
  "formatTypes": "Spreadsheet",
  "formatFamilies": null,
  "identifiers": [
    {
      "identifierText": "com.microsoft.excel.xls",
      "identifierType": "Apple Uniform Type Identifier"
    },
    {
      "identifierText": "fmt/62",
      "identifierType": "PUID"
    }
  ],
  "internalSignatures": [],
  "externalSignatures": [],
  "relationships": [
    {
      "relationshipType": "Has priority over",
      "relatedFormatID": 767,
      "relatedFormatName": "OLE2 Compound Document Format",
      "relatedFormatPUID": "fmt/111"
    },
    {
      "relationshipType": "Is subsequent version of",
      "relatedFormatID": 684,
      "relatedFormatName": "Microsoft Excel 97-2003 Workbook (xls)",
      "relatedFormatPUID": "fmt/61"
    },
    {
      "relationshipType": "Is subtype of",
      "relatedFormatID": 767,
      "relatedFormatName": "OLE2 Compound Document Format",
      "relatedFormatPUID": "fmt/111"
    }
  ],
  "submittedBy": [
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}