Exiting Cardfiler
  To exit Cardfiler, choose Exit from the File menu in the
  cardfile window.
  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:
  *   Opening a New Card File
  *   Opening an Existing Card File
  *   Adding a Card to a Card File
  *   Displaying a Card
  *   Copying Items Quickly
  *   Finding Text
  *   Saving Changes
  *   Merging Card Files
  *   Overview of Cardfiler