Floyd Saner (organizer of the Midwest Moots over the past few years) is highlighting the Assignment Module enhancements in Moodle 2.7 and touched on a pretty unknown feature of the Assignment when simple grading is selected for an online text assignment. Did you know that you can do your grading offline (at the beach, at the cabin, on the back of a horse)?
Grading submissions, internet not required.
Read about it here: http://docs.moodle.org/27/en/Assignment_settings#Offline_grading_worksheet
Dropdown to export:
What the file looks like: