Exams 1.5 can now share answer sheets to other users using Gmail and Google Drive.
Select [Share] from the menu on the [Detail answer sheet] screen.
If you want to save to Google Drive, select [Save to Drive].
If you want to send it to other users by Gmail, select [Gmail].
This function is thought to be available at the educational site. For example, I assumed that the teacher and students share an answer sheet.