master.xml

<data>
  <hello>paste your xml here</hello>
</data>

master.xsl

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">

  <xsl:output method="xml" indent="yes" />

  <xsl:template match="/">
    <xsl:variable name="alpha" select="'abcdefghijklmnopqrstuvwxyzåäö'" />
	<xsl:for-each select="1 to 29">
          <xsl:value-of select="substr($alpha, position(), 1)" />
    	</xsl:for-each>
  </xsl:template>

</xsl:stylesheet>