The Open Document Format (ODF) is a file format used for word processing, spreadsheets, and presentations. It is an open standard, meaning that it is publicly available and not controlled by any single company. ODF files typically have extensions like .odt for text documents, .ods for spreadsheets, and .odp for presentations. ODF was developed by the OASIS consortium and is designed to promote interoperability between different software applications. This allows users to create and edit documents across various platforms without worrying about compatibility issues. ODF is widely supported by many software programs, including LibreOffice and Apache OpenOffice.