Problem while down loading data into Excel

Question

Hi friend's,
I am getting a error while down loading header
internal table to excel.
since in my header internal table there is no p
type field..but i am getting this error..
Only flat, character-type data objects are supported at the argument
position "dest" for the statement
  "WRITE src TO dest".
In this case, the operand "dest" has the non-character-type or deep type
"P". The current program is flagged as a Unicode program. In the Unicode
context, type X fields are seen as non-character-type, as are
structures that contain non-character-type components.
i have coded like this
REPORT  ZACG_CCA_EXCEL                          .
Tables : zacg_cca.
data: P_file like RLGRAP-FILENAME.
Data: Begin of it_header occurs 0,
      ccode(10) ,
      mat_cd(12) ,
      ingr_desc(30),
      con(10),
      quan(10),
      percqty(10),
      DATE(10),
      rsamnos(10),
      flag(5),
      end of it_header.
Data : begin of it_final occurs 0,
       ccode type zacg_cca-ccode,
       mat_cd type zacg_cca-mat_cd,
       ingr_desc type zacg_cca-ingr_desc,
       conc type zacg_cca-conc,
       quantity type zacg_cca-quantity,
       percqty type zacg_cca-percqty,
       APP_DATE type zacg_cca-app_date,
       rsamnos type zacg_cca-rsamnos,
       flag ,
       end of it_final.
       SELECTION-SCREEN : BEGIN OF BLOCK blk WITH FRAME TITLE text-000.
       select-options : s_Date for zacg_cca-app_date.
       SELECTION-SCREEN  : END OF BLOCK blk.
       it_header-ccode = 'Samp_code'.
       it_header-mat_cd = 'Mat_code'.
       it_header-ingr_desc = 'Ingr_Desc'.
       it_header-con = 'Conc'.
       it_header-quan = 'Quantity'.
       it_header-percqty = 'Perc'.
       it_header-date = 'Date'.
       it_header-rsamnos = 'Rsamnos'.
       it_header-flag = 'Flag'.
       Append it_header.
       select ccode mat_cd ingr_desc conc quantity percqty
        app_date rsamnos from zacg_cca  into corresponding
        fields of table
       it_final where  zacg_cca~app_date in s_date.
       loop at it_final.
       it_final-flag = 'T'.
       modify it_final.
       it_final-quantity = it_final-quantity * 2 .
       Modify it_final.
       endloop.
       CALL FUNCTION 'MS_EXCEL_OLE_STANDARD_DAT'
         EXPORTING
           FILE_NAME                       = 'C:\amol\p_file'
          CREATE_PIVOT                    = 0
         DATA_SHEET_NAME                 = ' '
         PIVOT_SHEET_NAME                = ' '
         PASSWORD                        = ' '
         PASSWORD_OPTION                 = 0
          TABLES
         PIVOT_FIELD_TAB                 =
          DATA_TAB                        =   it_final
         FIELDNAMES                      =  it_header
        EXCEPTIONS
          FILE_NOT_EXIST                  = 1
          FILENAME_EXPECTED               = 2
          COMMUNICATION_ERROR             = 3
          OLE_OBJECT_METHOD_ERROR         = 4
          OLE_OBJECT_PROPERTY_ERROR       = 5
          INVALID_PIVOT_FIELDS            = 6
          DOWNLOAD_PROBLEM                = 7
          OTHERS                          = 8
       IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
       ENDIF.
can any one....

Answer 1

hii
for title this FM have some restriction as it can not take value if its more then 10 length so you need to give length as 10 only for every string then append it with FIELDNAMES = it_header
regards
twinkal