XML Syntax
The first line of an XML document should be the XML declaration. This gives the version of XML, and the character set to be used (e.g. ISO-8859-1 is the Latin-1/West European character set). For example:
<?xml version="1.0" encoding="ISO-8859-1"?>
This is followed by the root element of the document, which describes what kind of document you want this to be, for example a letter:
<letter>