Select
the composition into which to import the Clip Notes comments.
This should be the composition from which you rendered
the movie that was sent for comments. If you have modified the composition
since you rendered the movie for comments, the imported comments
may not be associated with the appropriate parts of the composition.
Choose File > Import > Adobe Clip Notes.
Select the XFDF file that contains the comments, and
click Open.
Clip Notes comments appear as composition-time markers.
Double-click a marker to read its comment.