LoadXML.as

protected var fileStream:FileStream;
protected static const LOCATION_XML:String = "/d/.../myXML.xml"; // Location of your XML

public function loadXML():void 
{
	var fileSettings:File = File.applicationStorageDirectory.resolvePath(LOCATION_XML);

	if (fileSettings.exists)
	{
    		fileStream = new FileStream();
		fileStream.addEventListener(Event.COMPLETE, onXMLContentLoaded);
		fileStream.openAsync(fileSettings, FileMode.READ);
	}
}

public function onXMLContentLoaded(event:Event):void 
{
	var myXML:XML = new XML(fileStream.readUTFBytes(fileStream.bytesAvailable));
	dispatch(new GeneralInformationEvent(GeneralInformationEvent.XML_CONTENT_LOADED, myXML));
	fileStream.removeEventListener(Event.COMPLETE, onXMLContentLoaded);
	fileStream.close();
}