My apologies if this question has already been asked/answered, I didn't find anything about it. Is it possible to use dots in column headers in any of the TOS components? I have to create csv files in which one of the column header has to be "Time.Flag". So far, I used tFileOutputDelimited with the last column header set with "TimeFlag" then I re-open the file with tPerl component and over-write the column header. It works fine but I would really like to avoid using tPerl and would like to optimise the job as it takes un-necessary processing time. Any help welcomed, thanks by advance.