[XeTeX] how to create and install xexmltex.fmt

[Arthur Reutenauer]

  By xexmltex, I assume you mean David Carlisle's xmltex format built
over XeTeX?  I have never used it, but I don't think you need it: if I
simply run xelatex on the file containing

	\def\xmlfile{manual.xml}
	\input xmltex.tex

as per the instructions in the documentation, I get a file typeset by
XeLaTeX.  Are you looking for something different?

	Arthur