The Sun ODF Plug-in is an extension to Microsoft Office that allows it to read and write ISO standard ODF files. It supports Office 2000, XP, and 2003, and works on Windows XP and Vista. It adds to MS Office the ability to read and write ODF text, spreadsheet, and presentation files (.odt, .ods, and .odp) - the ISO standard editions of MS Word, Excel, and PowerPoint files.
Furthermore, ODF text files (.odt) can be made the default format for MS-Word thanks to this plug-in (and double-clicking on an ODF text file on the desktop would automatically open it in MS-Word).
Addressing the accessibility concerns of existing MS-Office users was one of the key reasons behind Sun's development of the ODF plug-in, and I have been one of several folks involved in testing the accessibility of this plug-in (along with several beta testers whose employees with disabilities were likewise doing accessibility testing).
Sun, ODF, Plugin, Microsoft Office