% texmfstart texexec --lua COOnTeXML.tex --arg="odt=someotherfile.zip"
\startxmlsetups xml:mysetups
  \xmlsetsetup{\xmldocument}{text:p}{xml:paragraph}
\stopxmlsetups

\xmlregistersetup{xml:mysetups}

\startxmlsetups xml:paragraph
  \xmlflush{#1}\endgraf
\stopxmlsetups

\starttext
  \xmlprocess{main}{zip::\env{odt}::content.xml}{}
\stoptext