You might be asking yourself, “what's the big deal about XML?”. Let me try to explain it in simple terms. XML is becoming a standard format for many different types of devices, so XML gives you more options for file sharing and multiple device support.
Let me give you an example: You create a document, and you need to be able to publish it on the Web and the corporate intranet and then download it to your boss's PDA. It sounds like something only a programmer would do, but these types of features are becoming more and more common as the popularity of these technologies increases.