Create an assignment in a course with no groups Settings: "Blind Marking" set to Yes "Students submit in groups" set to Yes "Online text" set to Yes "Feedback files" set to Yes Login as a student and make a submission with an image. Login as a teacher and choose download all submissions (From the drop down above the grading table). Verify the zip downloaded is valid and contains one image and one html file for each student. Unzip the files to a folder and open one of the html files - the image should display correctly. Edit the html file (change some text) and create a new zip containing the html file and the image for one student. As a teacher choose "Upload multiple feedback files in a zip" from the drop down menu above the grading table. Upload the newly created zip file. Confirm the upload Verify the student received the edited html file as a feedback file.