Content query web part all fields internal name

My times developers face problems in setting up the content query web part with the column names. use the below template in itemstyle.xsl and you can find out all the column name and then use the column name in the CQWP(content query web part) properties



  <xsl:template name="ViewFields" match="Row[@Style='ViewFields']" mode="itemstyle">
<xsl:for-each select="@*">
          P: <xsl:value-of select="name()" />
</xsl:for-each>
    </xsl:template>