This week's book giveaway is in the OCMJEA forum. We're giving away four copies of OCM Java EE 6 Enterprise Architect Exam Guide and have Paul Allen & Joseph Bambara on-line! See this thread for details.
While a lot depends on how big your xml file is going to be, it can be saved as a BLOB. To display it in HTML format, you could potentially write a style sheet (XSLT) and display it as HTML, if the format of your XML file is consistent.