Download CSV file to SAP Presentation Server

To download internal table data to SAP presentation server as CSV file, first convert the internal table to text format. Then download the text to SAP presentation server as CSV file.

TYPE-POOLS: truxs.
*&---------------------------------------------------------------------*
*& Data Types
*&---------------------------------------------------------------------*
TYPES: BEGIN OF ty_spfli,
       carrid    TYPE spfli-carrid,
       connid    TYPE spfli-connid,
       countryfr TYPE spfli-countryfr,
       cityfrom  TYPE spfli-cityfrom,
       airpfrom  TYPE spfli-airpfrom,
       countryto TYPE spfli-countryto,
       cityto    TYPE spfli-cityto,
       airpto    TYPE spfli-airpto,
       END OF ty_spfli.
*&---------------------------------------------------------------------*
*& Data Declaration
*&---------------------------------------------------------------------*
DATA: gt_spfli TYPE TABLE OF ty_spfli.
DATA: gt_text  TYPE truxs_t_text_data.
*&---------------------------------------------------------------------*
*& Start-of-Selection
*&---------------------------------------------------------------------*
START-OF-SELECTION.
  SELECT carrid
         connid
         countryfr
         cityfrom
         airpfrom
         countryto
         cityto
         airpto
         UP TO 10 ROWS FROM spfli INTO TABLE gt_spfli.

*Convert to text
  CALL FUNCTION 'SAP_CONVERT_TO_TEX_FORMAT'
    EXPORTING
      i_field_seperator    = ','  " Comma seperator
    TABLES
      i_tab_sap_data       = gt_spfli
    CHANGING
      i_tab_converted_data = gt_text
    EXCEPTIONS
      conversion_failed    = 1
      OTHERS               = 2.
  IF sy-subrc <> 0.
    MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
            WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
  ENDIF.

*Download CSV file
  CALL METHOD cl_gui_frontend_services=>gui_download
    EXPORTING
      filename                = 'c:\temp\test.csv'
    CHANGING
      data_tab                = gt_text
    EXCEPTIONS
      file_write_error        = 1
      no_batch                = 2
      gui_refuse_filetransfer = 3
      invalid_type            = 4
      no_authority            = 5
      unknown_error           = 6
      header_not_allowed      = 7
      separator_not_allowed   = 8
      filesize_not_allowed    = 9
      header_too_long         = 10
      dp_error_create         = 11
      dp_error_send           = 12
      dp_error_write          = 13
      unknown_dp_error        = 14
      access_denied           = 15
      dp_out_of_memory        = 16
      disk_full               = 17
      dp_timeout              = 18
      file_not_found          = 19
      dataprovider_exception  = 20
      control_flush_error     = 21
      not_supported_by_gui    = 22
      error_no_gui            = 23
      OTHERS                  = 24.
  IF sy-subrc <> 0.
    MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
               WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
  ENDIF.

Output