Need help: GUI_DOWNLOAD and tab-separated in between fields.

hello everyone,
this is the layout of the interface that i created:
         sy-title
total records processed: XX
total records failed: XX
summary of the error
pernr<tab>name<tab>error message<tab>otherfieldshere
i wanted the error log to be saved locally thus, i have to use GUI_DOWNLOAD.
ok, here's the current parameters i supplied with my gui_download:
CALL FUNCTION 'GUI_DOWNLOAD'
       EXPORTING
            filename                    = v_file_string
            filetype                      = 'ASC'
            write_field_separator   = 'X'
       TABLES
            data_tab                    = i_error_log
(exceptions not displayed)
the problem that i have is that, there is a difference between the error logs displayed after the execution and the error logs saved in my local directory.
i did find a way to resolve this BUT, i still need to refine it. also, the spaces between the fields seems not tab delimited, but separated by space.
to explain further here's the current error log that i have downloaded:
10000001<tab>10/23/2006<tab>01<tab>P<tab>11<tab>01
the header:
         sy-title
total records processed: XX
total records failed: XX
summary of the error
is not included in the downloaded errorlog file.
i added some modification of my report to include it because, i want to to look exactly the same as of the errorlog generated/displyed after the execution.
the result looks as it is what i've expected BUT,
when i checked the spaces in between fields...
it is all separated by spaces... not tab.
here is the actual error log that i have obtained:
         sy-title
total records processed: XX
total records failed: XX
summary of the error
pernr<space><space><space>name<space><space><space><space><space><space>error message<space><space>otherfieldshere
What i wanted to resolve is that, i want the error log to be tab delimited and not separated by space.
is this possible? if it is, any suggestion will truly be appreciated.

Hi,
Please check your flat file i think it they have used the Three spaces instead of using a SINGLE TAB. between the fields.
Thanks & Regards,
Chandralekha.

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