This task topic describes how to open an existing message definition
file in the Message Definition editor so that you can view and edit its contents.
To
open an existing message definition file:
Switch to the Broker Application Development
perspective.
In the Resource Navigator, right-click the message definition file
(file extension *.msxd) that you want to open,
then click Open on the pop-up menu. This
launches the Message Definition editor for the message definition file that
you have specified.
Tip: The Eclipse framework lets you open resource
files with other editors. You are advised to only use the workbench Message
Definition editor to work with message definition files because this editor
correctly validates changes made to the message definition files. Other editors
might not do this.