You can make changes or add comments to a file, and then return the file to a participant.

To return a file to a participant, follow these steps:

1. From the Collect It home page, under "Dropboxes you own" or "Dropboxes in which you collaborate," click the name of the dropbox with which you want to work. You will move to the dropbox home page.
2. From the dropbox home page, click the cell for a participant's submitted assignment. You will move to the submitted files page for a specific participant.
3. Under the "Add to this conversation" section, you may write a short comment and then click Attach file. The option to browse your computer will appear.
4. Click Browse... and locate the file you wish to return to the participant.
5. Click Post to post your comment. The participant will now be able to view the returned file as an attachment to a comment under the original file.
You can make changes to this comment by clicking Edit on the right side of the comment.