yes by using  "Text_io" package

for example:

declare
 x text_io.file_type;
begin
 x:=Text_IO.Fopen('c:bonus.csv', 'w');                                                     for rec in(select * from emp) loop
 Text_io.put_line(x,rec.period_name||','||rec.col1||','||rec.col2||','||rec.col3);
 end loop;
 Text_IO.Fclose(x);
end;