XML Viewers

There are a number of XML viewer programs available online. One of the better ones is Mind Fusion's XML Viewer, which can be downloaded here: http://www.mindfusion.eu/xml-viewer.html . The viewer allows you to display the hierarchical structure of a xml file. There's a great online library of xml files available at this site: http://aiweb.cs.washington.edu/research/projects/xmltk/xmldata/www/repository.html#treebank that you can play around with. Tonight I downloaded a NASA .xml file which has data on astronomical observations:

Mind Fusion's product works much better than XML Explorer, available here,