How do I bulk download Assignment submissions in Canvas?
Bulk downloading assignments will take all the submissions and create a .zip file that you can download and grade on your computer. You can download the submissions through Grades or Assignments.
Downloaded assignments are linked to a student's assignment submission file, which is stored in the student's user files. If a student deletes the assignment submission from his or her user files, the assignment will not be part of the bulk download file. Viewing the assignment in SpeedGrader, however, is not affected.
Note: If you want to bulk upload assignment submissions, you cannot change the names of the submission files. Otherwise Canvas will not be able to recognize the files that should be replaced.