Two different excel files with same encoding not working

Hello everybody,

      I have a webdynpro application where i have export button which expprts the data and other button "empty file" which opens the empty excel file .

. and here

     if i am clicking on the "empty file" button, excel is opening and i can fill some data and import ..this is working fine. here i used ecoding format URF-8 for this button.

and when i click other button "Export" , it exports the data based on the selection and here data is coming correctly and in export button logic i used encoding "UTF-8".  and saved the exported file on to desktop and imported the same file. in this while importing this exported file through EXPORT button, i am getting some junk characters ## # # .

the code for two buttons "export" and "empty file" are same. but any one excel file is only working.But the user needs two excel files .

All the functionality of the application is workign fine. but i got stuck at this point. Its really ver urgent.

can somebody please help me on this issue.

Please find the code below  which i used for both the buttons.

  conv_out = cl_abap_conv_out_ce=>create( encoding = '4103' ).
    conv_out->convert(
      EXPORTING
        data = XTEXT "string
      IMPORTING
        buffer = STEXT ).

    wdr_task=>client_window->client->attach_file_to_response(
     i_filename = 'TEMPLATE FILE FOR ACTION MASS CREATION.xls'
     i_content =  stext
     i_mime_type = 'EXCEL' ).

Please help on this issue.

Thanks & Regards

Snitha