"The International Organization for Standardization (ISO)
finally published the Open Document Format (ODF) as an official
standard last week after approving it as an international standard
last May. The ODF file format--the XML-based open format for text,
spreadsheet, database, and presentation files--is now published
under the standard name of ISO/IEC 26300:2006.
"ODF is being championed as the accessible file format by
accessibility groups, as the open standard must face public peer
review to evaluate its accessibility as opposed to other,
proprietary formats (such as .doc)..."