The .APPENDIX command specifies the beginning of an appendix,
    assigns an identifying letter to it, and allows you to supply a
    title. Successive .APPENDIX commands assign identifying letters
    in alphabetical order. (See also .NUMBER APPENDIX and .DISPLAY
    APPENDIX.)

    Format

      .APPENDIX  [text]

    Abreviated format

      .AX  [text]

1  –  Parameter

 text

    The title you give the appendix