I&#039;m trying to do the treeview example from MSDN where they use an xml file for the nodes and an xls file for a template that converts the xml values so they can be used to build the tree. Well, I used the exact data they used to make it, and I get an error... (System.Xml.XmlException: There is invalid data at the root level. Line 1, position 1)<BR><BR>You can find the example here:<BR>http://msdn.microsoft.com/library/default.asp?url=/workshop/webcontrols/overview/treeview.asp<BR><BR>Scroll down to Data Binding with XML and XSL Templates<BR><BR>Please tell me if it works for you and tell me what you did to make it work! Thanks