I have File A:
<?xml version="1.0"?>
<sch>
<si>
        </si>
</sch>

I need to convert it to File B:
<?xml version="1.0"?>
<sch>
<si>
     <default>My text1</default>
     <default2>My text2</default2>
     </si>
</sch>

Will the following xsl help?
  <xsl:template match="sch">
<xsl:copy-of select="si/@default"/>
 <xsl:copy-of select="si/@default2"/>
             <xsl:apply-templates />
</xsl:template>