Simple replacement for DOCX nodes

simple-docx-replace.xsl

<?xmlversion='1.0'?>
<xsl:stylesheet
    xmlns:xsl='http://www.w3.org/1999/XSL/Transform'
    xmlns:w='http://schemas.openxmlformats.org/wordprocessingml/2006/main'
    version='1.0'>
  <xsl:template match="w:document/w:body/w:p/w:r/w:t[node()='Hello World']">
    <w:t>Goodbye World</w:t>
  </xsl:template>
  <!-- The following transform is the identity transform -->
  <xsl:templatematch="/|@*|node()">
    <xsl:copy>
      <xsl:apply-templatesselect="@*|node()"/>
    </xsl:copy>
  </xsl:template>
</xsl:stylesheet>