Problema al abrir un archivo XML

[echo_]

Gracias, ahora trato de imprimir todos los registros pero me tira este error:

Código PHP:

                       $dbquery->execute(); 
           while($rows = $dbquery->fetch(PDO::FETCH_ASSOC)){ 
                  $string = $rows['BYTES']; 
                    $tuxml = new SimpleXMLElement(htmlspecialchars($string)); 
             echo $tuxml->attributes()->Moneda; 
                  
            
                                  
 
           }  
   

Error:

Código:

Warning: SimpleXMLElement::__construct(): Entity: line 1: parser error : Start tag expected, '<' not found in /var/www/client/lib/class/index.php on line 34

Warning: SimpleXMLElement::__construct(): &lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;&lt;cfdi:Comprob in /var/www/client/lib/class/index.php on line 34

Warning: SimpleXMLElement::__construct(): ^ in /var/www/client/lib/class/index.php on line 34

Fatal error: Uncaught exception 'Exception' with message 'String could not be parsed as XML' in /var/www/client/lib/class/index.php:34 Stack trace: #0 /var/www/client/lib/class/index.php(34): SimpleXMLElement->__construct('&lt;?xml versio...') #1 /var/www/client/lib/class/index.php(47): uuid->select() #2 {main} thrown in /var/www/client/lib/class/index.php on line 34