How to upload .csv file with tab as delimiter.

HI,

I want to upload a .csv file with tab as delimiter to unix path in background.                                                                                                             

I know there is function module 'GUI_UPLOAD', but in my case data is available in an internal table .

upload the *.CSV :

OPEN DATASET lv_filename

         FOR OUTPUT IN TEXT MODE ENCODING DEFAULT.

    IF sy-subrc = 0.

  *     Write  file records into file on application server

      LOOP AT gt_datatab INTO gs_datatab.

        TRANSFER gs_datatab TO lv_filename.

      ENDLOOP.

CLOSE DATASET lv_filename.