GUI_DOWNLOAD method of cl_gui_frontend_services to download data to SAP within ABAP report

The cl_gui_frontend_services=>gui_download abap method is used to download a file from SAP to your PC. This is supposed to be the latest way of downloading files into SAP but to be honest it just executes the gui_download function module so using this should be the same as using the FM. Having said that I guess SAP could change this in the future and add differnt functionality to the method. Its also good that all functionality is grouped together within the cl_gui_frontend_services class.

*Selecting a Directory
DATA: datatab    TYPE table_of_strings,
      ld_lines   TYPE i,
      ld_file    TYPE string.
PARAMETERS: p_file(300) TYPE c.
ld_file = p_file.
APPEND 'Line1' to datatab.
APPEND 'Line2' to datatab.
APPEND 'Line3' to datatab.
CALL METHOD cl_gui_frontend_services=>gui_download
  EXPORTING
    filename = ld_file
  CHANGING
    data_tab = datatab
  EXCEPTIONS
    OTHERS   = 1.

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