如何在XML标记/元素中包含空格,该空格由XSLT转换为Excel工作表

<root>
  <data>这是一个包含空格的文本。</data>
</root>

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:output method="xml" indent="yes" encoding="UTF-8"/>
  
  <xsl:template match="/">
    <Workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet"
               xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet">
      <Worksheet ss:Name="Sheet1">
        <Table>
          <Row>
            <Cell>
              <Data ss:Type="String">数据</Data>
            </Cell>
          </Row>
          <xsl:for-each select="root/data">
            <Row>
              <Cell>
                <Data ss:Type="String">
                  <xsl:value-of select="."/>
                </Data>
              </Cell>
            </Row>
          </xsl:for-each>
        </Table>
      </Worksheet>
    </Workbook>
  </xsl:template>
  
</xsl:stylesheet>