The exported XML file uses a simple schema to store messages. All XML element and attribute names are in the default Namespace, there are no Namespace prefixes and no Namespaces are defined.
The root element name is "message-list". It contains a "message" element for each message being exported. The "message" elements occur in the order the messages were issued regardless of the sorting order in the Messages pane.
Each "message" element has a number of XML attributes corresponding to the message fields in the exact format as stored in the database; empty values are omitted. The text content of each "message" element contains the formatted message as it is displayed in the Messages pane.