Main window (Backup files)

Tabs of the window:
Included Excluded Files Backups View Log

When you select the View File List item of the Backup menu, the right side of the Backup page displays a list of selected backup files.

The list of selected backup files hides when you click somewhere on the backups list.

Use the right mouse button to show the Backup File context menu.

Select the Open item of the Backup File context menu to view/edit stored file with a default editor.

Select the View As Text item of the Backup File context menu to open the View page and view the  stored file with the intermal text viewer.

Note: Launching a default editor, Backup Tool creates a temporary file and deletes one on exit. So if you have modified the file with a default editor, you should "Save as" the file to prevent loosing the modifications.