Format reports by last name instead of first name to match our grading systems#25

Hello,

My students have been using your website for years and really enjoy it. A lot of valuabe improvements has been made that help us, teachers. I have been struggling with the formatting of the reports though, and would like to make a recommendation. It would be easier for teachers if the downloadable reports were listed in alphabetic order of last name vs first name. Our grading systems are formatted that way and it is always a hassle to convert everything back.