Exit
  To exit Cardfiler, choose Exit from the File menu.
  If you did not save all changes to the current card file, a
  dialog box appears:
  -   To save the changes you made to the card file and exit
      Cardfiler, click on Yes.
  -   To exit Cardfiler without saving the changes you made to
      the card file, click on No.
  -   To cancel the exit operation, click on Cancel.
  Additional topics:
  *   Menus in the Cardfile Window
  *   Menus in the Card Window
  *   Overview of Cardfiler