C:\libxml2-2.5.6.win32\util>xmllint testXmlReader.xml
■  < ? x m l   v e r s i o n = " 1 . 0 "   e n c o d i n g = " U T F - 1 6 " ? >

 < r o o t >
     < n o d e >
         t e x t e   a c c e n t u Ú
     < / n o d e >
 < / r o o t >

C:\libxml2-2.5.6.win32\util>xmllint --stream testXmlReader.xml
testXmlReader.xml:1: error: Start tag expect, '<' not found
´╗┐<?xml version="1.0" encoding="UTF-16"?>
^
testXmlReader.xml : failed to parse