 Assignment file type restrictions in Moodle 3.3 Teachers now have more control over the file students submit in assignments. They can allow students to submit files of any readable type, or they can specify which types of file will be accepted. In the settings screen of this assignment, our teacher can allow any file types if he leaves the field blank, or he can restrict them by typing in the required file extensions. Our teacher adds the .x, odt and pdf file extensions, so only these will be accepted. If we now look at the assignment as a student, we see a message about accepted file types, and if our student then attempts to upload a PowerPoint file, Moodle gives a warning that this type of file will not be accepted and our student will have to think again. Uploading a pdf file then works. To summarise, teachers may now specify which types of file their students may upload as an assignment submission.