You can open a file object.
Double-click the file object node in the Browser, its symbol in the diagram, or its entry in the List of Files.
The application associated with the file object extension opens. If the file object extension has no association in Windows, a standard Open With dialog box opens that lets you select the application you want to open the file object.
A newly created file object has, by default, a .txt extension and opens in Notepad. You can change the extension in the file object property sheet and associate other editors with the extension.