Upload Feedback Files in Bulk, as Folders
You can upload feedback files to students in response to their submission, these may be annotated versions of their own submission or other files. There are 2 ways to upload feedback files: individually or bulk, this article deals with bulk uploading of feedback files using Folders.
Since Myplace 2017-18 (Moodle 3.2), the assignment tool now allows submissions to be downloaded in Folders, not just as a directory of files.
If you wish to return arbitrary files to students, such as a marking sheet or other documents, you may wish to choose this option, which is at the bottom of the grading table page.
Step-by-step Guide: Procedure for uploading feedback files (as .zip file)
Click on any image below to enlarge
1) Create your zip file using your feedback files. If you don't know how, see create a zip for more information. Each file should have the prefixed file name: participant_participantID_assignsubmission_file_chooseyourfeedbacktitle. So an example would be participant_1254504_assignsubmission_file_feedback.
One way of achieving this is to 'download all submissions' which downloads as a zip file and then going into each document and removing the submission text and replacing it with the feedback, then renaming the last part of the title as required (or you can just keep it with the same name as the students submission).
Make sure that you create a .zip file and not a .rar file which is similar. Double check that all your files are named correctly. These are 2 common ways that the upload is unsuccessful giving the message 'no changes'.
2) Select 'Upload multiple feedback files in a zip option from the Grading action drop-down menu
3) Either choose file or drag and drop your .zip file into the highlighted area, then click 'Import feedback file(s)'
4) When successful you should see a list of 'modified feedback files'. Click confirm and continue, the files will then upload to the assignment.
5) You will then be able to see and access the feedback files in "Submissions" and the students will have access when the assignment is made available to them.

