how do I get the PI to appear at the beginning of the document?
my $xsl = new XML::Twig::Elt('#PI');
$xsl->set_target('xml-stylesheet');
$xsl->set_data('type= "text/xls" href="xls_style.xls"');
$xsl->paste('before', $twig->root);
This fails because you can't paste before the root.
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