Reg: FILE_GET_SIZE

Hi Group,

I want to know the size of the excel file which i am uploading to the internal table.

i am using the method file_get_size.

CALL METHOD cl_gui_frontend_services=>file_get_size

    EXPORTING

      file_name = gv_file

    IMPORTING

      file_size = gv_filesize.

the problem is for the first time the filesize is 0 the actual size is not displaying in the filesize.

What is the problem here????

thanks in advance

Regards,

Suganya.