Using XML is one of the best ways for structuring external content in a logical format that is easy to understand, process, and update.
The XML libraries have been completely overhauled in ActionScript 3. It implements the powerful XML-handling standards defined in ECMAScript for XML (E4X) specification. The XML class contains methods and properties for working with XML objects.
In AS 2 we create an XML object and then call the XML.load() method in order to load in an external file. In AS 3 loading of external XML files is handled by the new URLLoader class.
