You will see a file appear. Select and open that file to obtain your completely filled out form. Print and save your copy of the form. If, upon review, you find you need to revise your report, you may do so. The resubmitted report will simply replace the original report filed.
Nothing is transmitted via email.
The line numbers refer directly to the corrresponding lines on the printed report form. Line numbers not in sequence relate to those calculations automatically made online.