test-data.xml

<?xml version="1.0" encoding="UTF-8"?>
<Root xmlns="http://myschema.example.com/" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:xml="http://www.w3.org/XML/1998/namespace" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://myschema.example.com/ test-schema.xsd ">
  <MyHTMLElement>
    <xhtml:p>This is an XHTML paragraph!</xhtml:p>
  </MyHTMLElement>
</Root>