XML.com FAQs > C. Authors of SGML (including writers of HTML: Web page owners)
Question:  C.21 How do I execute or run an XML file?

You can't and you don't. XML is not a programming language, so XML files don't `run' or `execute' . XML is a markup specification language and XML files are data: they just sit there until you run a program which displays them (like a browser) or does some work with them (like a converter which writes the data in another format, or a database which reads the data), or modifies them (like an editor).

This FAQ is from The XML FAQ, maintained by Peter Flynn