Inserting HWPFDocument into XWPFDocument

Hi,

I tried to search on the archives for this, but couldn't find it. Is there
a way to insert HWPFDocument data into an existing XWPFDocument? I have
multiple Word documents that need to be combined, and some of them are of
the "application/msword" format, while a template and some others are of
the XML-based format.

I thought of extracting a range of the HWPFDocument, but couldn't come up
with a way to insert that into the combined one.

Thanks for any possible help in advance!

Best regards,

Jaska