Office Open XML

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Also known as

OOXML

File extension(s)

• .docx
• .pptx
• .xlsx

Format registry information

• docx PRONOM
• pptx PRONOM
• xlsx PRONOM

Significant characteristics

See Significant characteristics of word processing files

Preservation format

Keep in original format

Access format

PDF for PPTX files

More information

From Wikipedia: "The Office Open XML file formats are a set of file formats that can be used to represent electronic office documents. The format defines a set of XML markup vocabularies for word processing documents, spreadsheets and presentations as well as specific XML markup vocabularies for material such as mathematical formulae, graphics, bibliographies etc. The stated goal of the Office Open XML standard is to be capable of faithfully representing the pre-existing corpus of word-processing documents, spreadsheets and presentations that had been produced by the Microsoft Office applications and to facilitate extensibility and interoperability by enabling implementations by multiple vendors and on multiple platforms. An Office Open XML file is a ZIP-compatible OPC package containing XML documents and other resources. That is, one can see the contents of an OOXML file, for example by renaming it to a .zip file and opening it with any zip tool. The actual .xml files can then be viewed in a web browser or a plain text editor."