Open PPTX File

Open Document File

OpenDocument file format is an XML based format developed by OASIS (Organization for the Advancement of Structured Information Standards). It originated from OpenOffice.org XML which is the default file format for open source office packages OpenOffice.org and LibreOffice. Besides being an OASIS standard OpenDocument format is also standardized as ISO/IEC 26300.

Below is a list of file extensions used by OpenDocument XML file format and their corresponding mime types:

• ODT – OpenDocument Text. Mime type is application/vnd.oasis.opendocument.text.
• OTT – OpenDocument Text Template. Mime type is application/vnd.oasis.opendocument.text-template.
• OTH – HTML Document Template. Mime type is application/vnd.oasis.opendocument.text-web.
• ODM - OpenDocument Master Document. Mime type is application/vnd.oasis.opendocument.graphics.
• ODG - OpenDocument Drawing. Mime type is application/vnd.oasis.opendocument.graphics-template.
• OTG - OpenDocument Drawing Template. Mime type is application/vnd.oasis.opendocument.presentation.
• ODP – OpenDocument Presentation. Mime type is application/vnd.oasis.opendocument.presentation-template.
• OTP - OpenDocument Presentation Template. Mime type is application/vnd.oasis.opendocument.spreadsheet.
• ODS - OpenDocument Spreadsheet. Mime type is application/vnd.oasis.opendocument.spreadsheet-template.
• OTS - OpenDocument Spreadsheet Template. Mime type is application/vnd.oasis.opendocument.chart.
• ODC - OpenDocument Chart. Mime type is application/vnd.oasis.opendocument.formula.
• ODF – OpenDocument Formula. Mime type is application/vnd.oasis.opendocument.formula.
• ODB – OpenDocument Database. Mime type is application/vnd.oasis.opendocument.database.
• ODI – OpenDocument Image. Mime type is application/vnd.oasis.opendocument.image.

Initial OpenDocument format had version 1.0 and was released for standardization in 2006. After initial version two more versions of OpenDocument were published. OpenDocument 1.1 had only minor changes. OpenDocument 1.2 was published in 2015 and added several important features including:

• OpenFormula based formulas support in spreadsheets
• Digital signatures
• RDF-based metadata
• Accessibility features

OpenDocument 1.3 standard is currently under development and will including real-time collaboration and change-tracking features. OpenDocument is a free standard which gained wide adoption not only among individual users but also government and public institutions. OpenDocument Format Alliance was formed by IBM and Sun Microsystems to promote and advanced OpenDocument format as a primary document format for governments.