Is there a limit to the file size a student can submit to Assignments?

File size limit is set locally (by ITD). Currently it is 2GB which is typical for most universities.

Note: if you use Turnitin for assignments, the filesize limit is 40MB. The file size may not exceed 40 MB and 400 pages or fewer. More information can be found here: https://help.turnitin.com/feedback-studio/d2l/instructor/submitting-papers/file-types-and-size.htm