manifest are: A list of all of the files in the package. The media type of each file in the package. If a file stored in the package is encrypted, the information required to decrypt the file is stored in the manifest. Pictures (directory) Pictures is a separate folder for images included in the document. This folder is not defined in the OpenDocument specification. Files in this folder can use various image formats, depending on the format of inserted file. While the image data may have an arbitrary format, it is recommended that bitmap graphics are stored in the PNG format and vector graphics in the SVG format. Reuse of existing formats By design, OpenDocument reuses existing open XML standards whenever they are available, and it creates new tags only where no existing standard can provide the needed functionality. Thus OpenDocument uses a subset of DublinCore for metadata, MathML for displayed formulas, SMIL for multimedia, XLink for hyperlinks etc. Although not fully reusing SVG for vector graphics, OpenDocument does use SVG-compatible vector graphics within an ODF-format-specific namespace, but also includes non-SVG graphics. History Version 1.0 became an OASIS Standard on 2005-05-01 Version 1.1 became an OASIS Standard on 2007-02-07 Version 1.2 became an OASIS Standard on 2011-09-29 Versions detection To indicate which version of the OpenDocument specification a file complies with, all root elements take an office:version attribute. The version number is in the format revision.version (e.g. office:version="1.1"). The office:version attribute identifies the version of ODF specification that defined the associated element, its schema, its complete content, and its interpretation. ODF 1.0/1.1 If the file has a version known to an XML processor, it may validate the document. Otherwise, it is optional to validate the document, but the document must be well formed. It is not mandatory to use office:version attribute in ODF 1.0 and ODF 1.1 files. ODF 1.2 The office:version attribute shall be present in each and every <office:document>, <office:document-content>, <office:document-styles>, <office:document-meta>, and <office:document-settings> element in the XML documents that comprise an OpenDocument 1.2 document. The value of the office:version attribute shall be "1.2". When an element has office:version="1.1" the element and its content are based on the OpenDocument v1.1 specification. For office:version="1.0" the element and its content are based on the OpenDocument v1.0 specification. When an element has office:version omitted, the element is based on a version of the OpenDocument specification earlier than v1.2. In these cases