The XML | Check well-formedness (F7) command checks the active document for well-formedness by the definitions of the XML 1.0 specification. Every XML document must be well-formed. Authentic Desktop checks for well-formedness whenever a document is opened, relöoaded, or saved. If an XML document is not well-formed, this will be automatically reported in the Messages window and the XML document will be displayed in a Text View. You can fix the error in the Text View and then switch back to Authentic View.