SQL & PL/SQL

Hi,

I have a new requirement in which I have to write to an excel ,.xlsx(2007 format). I am using Oracle 9i.

When I try to write it to .xlsx it is writing but when i try to open the file it says "excel 2007 excel cannot open the file because the file format or file extension is not valid".

I am using the following Stored Procedure:

create or replace
procedure myfilewrite( p_location IN varchar2,
p_filename IN varchar2)
IS
v_disk_file utl_file.file_type;

BEGIN
v_disk_file := utl_file.fopen( location => p_location,
filename =>p_filename,
open_mode=>'W');

utl_file.put_line(v_disk_file,'abc'||chr(13));
utl_file.fclose(v_disk_file);

EXCEPTION
when utl_file.invalid_path then
utl_file.fclose(v_disk_file);
raise_application_error(-2001,'path error');
when utl_file.invalid_operation then
utl_file.fclose(v_disk_file);
raise_application_error(-2002,'invalid operation error');
when utl_file.write_error then
utl_file.fclose(v_disk_file);
raise_application_error(-2003,'write error');
when utl_file.invalid_filehandle then
utl_file.fclose(v_disk_file);
raise_application_error(-2004,'filehandler error');
when others then
raise_application_error(-2005,'could not write to file');
END;

Please help me regarding this issue.

Regards,

RAJ