xslt translator from adobe's xfa to xform?

The 2012 f1040.pdf file that was here:

   www.irs.gov/pub/irs-pdf/

has some xfa:

   http://en.wikipedia.org/wiki/XFA

parts.  Those parts are extractable with the help of:

   http://api.itextpdf.com/itext/com/itextpdf/text/pdf/XfaForm.html

However, I've no viewer for the extracted .xml files.
Is there some translator, using, possibly, XSLT, to
some sort of xform files that can be viewed by, for example,
the firefox web browser?

TIA.

-regards,
Larry

BTW, Attached are two of the extractions from the xfa file
(after modification by xmllint).
The first looks like it specified the layout, the 2nd looks
like it specified the data.