From Seo Wiki - Search Engine Optimization and Programming Languages
Compound Document Format (CDF) is an electronic document file format developed by the W3C that contains multiple formats, such as SVG, XHTML, SMIL and XForms.
The OpenDocument Foundation which previously supported OpenDocument Format (ODF), in a second moment has switched alliances and started promoting CDF. As of November 11, 2007, the official website has been shut down, probably marking the end of the OpenDocument Foundation.
Template:Office document file formats
de:Compound Document Formats
fr:Compound Document Format
ja:Compound Document Format