How to write xsl code which checks that xml file starts with following:

<?xml version="1.0" encoding="UTF-8"?>

The file which does not start with above line is invalid xml file.

How to write the xsl code to check the above mentioned validation.
Someone please help.

HV

I don't think this is possible, that information is lost by the time the XSLT gets its hands on the XML document.
Why do you care?

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Joe (Microsoft MVP - XML)

The XML declaration is not part of the tree model passed by the XML parser to the XSLT processor.

XSLT can only be used to process well-formed XML documents. If the document isn't well-formed (that is, if it isn't XML), then XSLT is no use to you.

(However, you are wrong to suppose that an XML file with no XML declaration cannot be well-formed)

Michael Kay
http://www.saxonica.com/
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference