Converter Open XML for Mac

Microsoft released to download the first beta version of its Open XML converter supposed to help Mac users to Office files created from Office 2007 PC to be readable on a Mac (RTF). For the time being the converter is only able to transcribe .docx and .docm files into RTF; and it is still bugged.
Hereafter is a more detailed description of this converter:

Microsoft Office Open XML File Format Converter for Mac 0.1b (Beta)
With the Office Open XML Converter, you can convert Office Open XML files to a format that is compatible with Microsoft Office 2004 for Mac and Microsoft Office v. X for Mac. You can choose to convert and open one file, or convert a large number of files.
This version of the Office Open XML Converter can convert the following Office Open XML file formats:
Word Document (*.docx)
Word Macro-Enabled Document (*.docm)
These files are converted to Rich Text Format (RTF), which can be opened in Microsoft Word 2004 and Microsoft Word X.
The converter is a Beta release, and might be unable to convert all the data in Office Open XML files. After you convert a file, you should review the file carefully to make sure that it contains all of the information that you expect.
The following issues are known to exist in this Beta release:
Macros and Visual Basic content are not included in the converted file.
Charts and SmartArt graphics are converted to pictures.
The following issues might occur in this Beta release:
Graphics and other objects in the document might appear with a different size.
Color fills and shading in tables might not be preserved.
Conversion might not succeed if the document contains a bibliography or citations.
Conversion might not succeed if the document contains WordArt.
Document layout and formatting might not be preserved.
Some Unicode characters might not be preserved.
Conversion might not succeed if the document contains very large pictures.
Conversion might not succeed if you use an SMB network volume as the preferred destination for converted files.
Picture bullets might not be preserved.
Fonts might be substituted.
This Beta release expires on December 31, 2007.

To download it: OfficeOpenXMLConverter010EN.dmg