InterForm400 has been able to generate XML files for over a year now, but if you have not tried it yet, you can download an export file with a couple of definitions which converts the InterForm400 demo spooled file, which you can create via the Service menu.

The export file can be downloaded here:
http://download.interform400.com/shares/public/EXPORT_xml_demo.zip

The cookbook describes (if you have forgot) how to import resources. The cookbook is available here:
http://download.interform400.com/shares/public/CookBook.zip