Open Document Format
Open Document Format (ODF) is an ISO standard to provide an open XML-based document file format for office applications to be used for documents containing text, spreadsheets, charts, and graphical elements. ODF is defined via an open and transparent process at OASIS and has been approved unanimously by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC) as an international standard in May 2006.
 Open Document Freedom
Open Document Freedom - an organization that promotes ODF and Open Standards.
Document Freedom Day - The last Wednesday in March is a day set aside to promote document freedom. The main goals are:
- promotion and adoption of free document formats
- forming a global network of like minded people promoting Open Standards
- coordination of activities that happen on last Wednesday of March, Document Freedom Day