Let me export a group of participants in .csv format
This is out and available for everyone on our paid plans to use. The basics are that if you go to the Participants page you can export selected participant groups OR all the participants on the account to CSV.
You can see how it works and more details here: https://polleverywhere.uservoice.com/knowledgebase/articles/1091779
Dave Coffey commented
This could also be used to download lists of large courses, break the lists into sections and re-upload for better management of large courses. (Think lab sections, cross-listed course sections etc.).
Steve Bannister commented
To match the roster in PE to my authoritative class roster to see who is missing.