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ISPF: Open an Existing File

Enter P at the Select Option command area. Press enter. Enter P (ISPF/PDF Menu) at the Select Option command area of the NDUS Main Menu.
Enter 2 (Edit) at the Option command area.

Press Enter.

Enter 2 at the Option command area of the ISPF Primary Option Menu to choose the Edit command.
Enter the dataset name qualifiers. Press enter.

Enter the dataset name qualifiers.

Press enter.
Move to the text area of the edit screen and begin entering your information. Move to the text area of the edit screen and begin entering your information.