{
 "id": "office-open-xml",
 "name": "Office Open XML",
 "category": "document",
 "identifiers": {
  "extensions": [
   "docx",
   "xlsx",
   "pptx",
   "dotm",
   "ppsm",
   "pptm",
   "xlsm",
   "xltm",
   "xltx"
  ],
  "puid": [
   "fmt/189"
  ],
  "wikidata": [
   "Q279979"
  ],
  "loc_fdd": [
   "fdd000395"
  ],
  "magic": [
   {
    "offset": 0,
    "hex": "504b0304",
    "notes": "Microsoft Office Open XML"
   }
  ],
  "signatures": [
   {
    "name": "Microsoft Office Open XML",
    "sequences": [
     {
      "position": "bof",
      "offset": 0,
      "pattern": "504b0304{26}5b436f6e74656e745f54797065735d2e786d6c20a2*504b0102*504b0506"
     }
    ]
   }
  ],
  "priority_over": [
   "x-fmt/263"
  ]
 },
 "status": "writable",
 "summary": "Microsoft developed office Open XML (OOXML) in 2007. It is an XML based format representing a departure from previous Microsoft Office suites, which were binary file based. Starting with Microsoft Office 2007, the Office Open XML file formats have become the default file format of Microsoft Office. The ISO standard for OOXML is ISO/IEC DIS 29500. An OOXML file format consists of a compressed zip archive that is designated according to which file type it is. OOXML uses three custom XML based languages to describe its’ three document types. WordProcessingML, SpreadsheetML and PresentationML are each used to describe Word, Excel and PowerPoint Presentation files respectively. OOXML is not an open format but the specification and development rights have been released under Microsoft’s Covenant not to Sue. OOXML is platform independent.",
 "tools": [
  {
   "name": "AbiWord",
   "url": "https://www.wikidata.org/wiki/Q136775",
   "reads": true,
   "writes": false,
   "license": "GNU General Public License, version 2.0 or later",
   "open_source": true
  },
  {
   "name": "Advanced Guard for Information Security",
   "url": "http://evc.ctc.com/products/agis/",
   "reads": true,
   "writes": false
  },
  {
   "name": "anydoc",
   "url": "https://firecrawl.github.io/anydoc/",
   "reads": true,
   "writes": false,
   "license": "MIT License",
   "open_source": true
  },
  {
   "name": "Apache Tika",
   "url": "https://tika.apache.org",
   "reads": true,
   "writes": false,
   "license": "Apache Software License 2.0",
   "open_source": true
  },
  {
   "name": "Duxbury Braille Translator",
   "url": "https://www.duxburysystems.com/dbt.asp",
   "reads": true,
   "writes": false
  },
  {
   "name": "DWG OfficeZip",
   "url": "https://dwgofficezip.com/",
   "reads": true,
   "writes": false,
   "license": "proprietary license"
  },
  {
   "name": "Julia",
   "url": "https://julialang.org/",
   "reads": true,
   "writes": false,
   "license": "Expat license",
   "open_source": true
  },
  {
   "name": "LibreOffice",
   "url": "https://libreoffice.org",
   "reads": false,
   "writes": true,
   "license": "Mozilla Public License, version 2.0",
   "open_source": true
  },
  {
   "name": "LibreOffice Impress",
   "url": "https://www.libreoffice.org/discover/impress/",
   "reads": true,
   "writes": true,
   "license": "Mozilla Public License, version 2.0",
   "open_source": true
  },
  {
   "name": "LibreOffice Writer",
   "url": "https://www.libreoffice.org/discover/writer/",
   "reads": true,
   "writes": true,
   "license": "Mozilla Public License, version 2.0",
   "open_source": true
  },
  {
   "name": "Microsoft Excel",
   "url": "https://products.office.com/en-gb/excel",
   "reads": true,
   "writes": false,
   "license": "end-user license agreement"
  },
  {
   "name": "MobiOffice",
   "url": "https://mobisystems.com/mobioffice",
   "reads": true,
   "writes": false
  },
  {
   "name": "MyOffice",
   "url": "https://support.myoffice.ru/en/",
   "reads": false,
   "writes": true,
   "license": "proprietary license"
  },
  {
   "name": "nomacs",
   "url": "https://nomacs.org",
   "reads": true,
   "writes": false,
   "license": "GNU General Public License, version 3.0",
   "open_source": true
  },
  {
   "name": "Notational Velocity",
   "url": "https://notational.net/",
   "reads": true,
   "writes": false,
   "license": "GNU General Public License, version 3.0",
   "open_source": true
  },
  {
   "name": "Photorecovery",
   "url": "https://lc-tech.com/help/PhotoRecovery/English/index.html",
   "reads": true,
   "writes": false
  },
  {
   "name": "Q11255",
   "url": "https://www.office.com/",
   "reads": true,
   "writes": false,
   "license": "Microsoft end-user license agreement"
  },
  {
   "name": "Q207902",
   "url": "https://www.adobe.com/acrobat.html",
   "reads": true,
   "writes": true,
   "license": "proprietary license"
  },
  {
   "name": "Q220993",
   "url": "https://www.gnumeric.org/",
   "reads": true,
   "writes": true,
   "license": "GNU General Public License, version 2.0 / GNU General Public License, version 3.0",
   "open_source": true
  },
  {
   "name": "R",
   "url": "https://www.r-project.org",
   "reads": true,
   "writes": false,
   "license": "GNU General Public License, version 2.0",
   "open_source": true
  },
  {
   "name": "Stata",
   "url": "https://www.stata.com/",
   "reads": true,
   "writes": false
  },
  {
   "name": "WebPlus Essentials",
   "url": "https://www.wikidata.org/wiki/Q109625259",
   "reads": true,
   "writes": false
  },
  {
   "name": "WPS Writer 2013",
   "url": "https://www.wikidata.org/wiki/Q111673914",
   "reads": true,
   "writes": true
  }
 ],
 "projects": [
  {
   "name": "File Formats Wiki",
   "url": "http://fileformats.archiveteam.org/wiki/Office_Open_XML",
   "kind": "wiki"
  },
  {
   "name": "PRONOM fmt/189",
   "url": "https://www.nationalarchives.gov.uk/PRONOM/fmt/189",
   "kind": "format-doc"
  },
  {
   "name": "Wikidata Q279979",
   "url": "https://www.wikidata.org/wiki/Q279979",
   "kind": "wiki"
  }
 ],
 "provenance": {
  "sources": [
   "ffw",
   "pronom",
   "wikidata"
  ]
 },
 "updated": "2026-10-24",
 "version": "2007 onwards",
 "aliases": [],
 "structure": [],
 "parsers": [],
 "conversions": [],
 "samples": [],
 "claims": [],
 "verification": []
}