This one describes the java tool to extract the xml from the zip.
  Has anyone given thought (or better yet, code) to
displaying an Open
 Document Format (ODF) document on an XWiki page?  As I have recently
 discovered, XML documents can be parsed with tools already in XWiki's
 libraries, but formatting them is, of course, another question.
 Opening
 a ZIP file is probably also a no-brainer, though I don't know offhand
 how it's done.
 This ought to be fairly simple, using a very standard XSL
 stylesheet, or
 something similar.  Of course, with XSL, a standard browser should be
 able to display ODF formats itself, although the most commonly-used
 browser doesn't fit that definition of standard...
 The question may boil down to:  is there an XSL stylesheet that
 formats
 ODF as HTML?  I think I'll go have a look, but if you know of one,
 please don't hesitate to tell me.
 brain[sic]
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