BIG hand to Microsoft on this one!
Microsoft will license for free its Microsoft Office 2003 XML schemas, a move that will help outside developers enable other programs to trade data with Microsoft’s Office applications.
The company released the schema for Word 2003, called WordprocessingML on its website (www.microsoft.com/office/xml/). In December it plans to release the schema for Excel 2003 and for InfoPath 2003.
This seems to be real step from Microsoft to open XML format, thought I am still quite disappointed that Microsoft doesn’t want to make industry standard from all office format like Oasis is trying to do together with all other companies.
Check out also Xml Schemas for WordprocessingML here.