Within Moodle it is possible to export all submissions for a particular assignment, potentially facilitating offline grading. You might want to do this in order to use programs such as Acrobat or Word to read, comment on, or otherwise markup files to provide students feedback. These files then can be uploaded back into Moodle, which also can be done in bulk.
After downloading submissions as described above and providing comments or other annotation, you may want to upload them back in order to provide students feedback. Please note, in order to enable this capability, your assignment needs to be configured to accept feedback files. To do this:
Note also that you can set this option when you initially create a new Assignment activity.
Assuming the following is true, you can upload feedback files back to the assignment:
To upload feedback files: