Column headings in a file extract to excel

Question

I am writing a program that will extract data and download it as a tab delimited file which will be input to excel. I need to put column headings on the file and I have attached an sample of the code that I am using. It is working fine but I am not sure if this is the correct approach I have a file that has 87 columns in it.
thanks in advance for the help.
DATA: begin of header_line occurs 0,
      line(50) type c,
      end of header_line.
FORM build_header_line.
  header_line-line = 'Vendor'.
  append header_line.
  header_line-line = 'CoCd'.
  append header_line.
  header_line-line = 'POrg'.
  append header_line.
  header_line-line = 'Group'.
  append header_line.
  header_line-line = 'Name'.
  append header_line.
.(87 times)
ENDFORM. "  build_header_line.
CALL FUNCTION 'GUI_DOWNLOAD'
    EXPORTING
      filename                = l_path
      write_field_separator   = 'X'
    TABLES
     fieldnames               = header_line
      data_tab                = it_extract_data
    EXCEPTIONS

Answer 1

Hi Timothy,
The current approach of your code doesnt include a header to your file.
Header is used add information about the code page and the byte sequence if the internal table was created through a code page conversion using gui_convert_codepage and it is of type hexadecimal with a length of at most 1023 bytes.
1)Have a separate internal table for your structure and pass this internal table data to FM 'GUI_DOWNLOAD'.
2)Have a second internal table which holds your data and use FM 'GUI_DOWNLOAD' with Importing parameter APPEND as 'X' with the same FILENAME which you used in first GUI_DOWNLOAD function module.
Thanks,
Vinay