[WD] XML Creation

Hello to all

I'm creating an XML file and i have a few questions to post here.

1) How to change the first line created by my program? Some parameter to use? :

<?xml version="1.0" encoding="ISO-8859-1" TO <?xml version="1.0" encoding="UTF-8"?>

2) Is there a Xml function to create this line (copied from another Xml file)?

<?xml-stylesheet type="text/xsl" href="(File per visualizzazione FatturaPA 1.2 - NON inviare).xsl"?>

Suggestions are very appreciated
TIA

Gianni