The Specs settings specify the files to be compared.
1.While in a Text Compare session, choose Session | Session Settings to open the Session Settings dialog.
2.Click the Specs page.
3.The Left file box shows left-pane file.
4.The Right file box shows right-pane file.
5.Select Prevent editing for either file to protect content from being changed on disk.
6.In the Description box, type any text you want to identify the session.
