Contact Permission/Unsubscribe Issue

OK-

Bear with me...

We are working on switching from Constant Contact to WordFly.

We will be using Contact Permissions in Tessitura to manage unsubscribes for WordFly. We did not manage unsubs in the database prior to this. Currently, everyone in our database is marked as N/A (see below). We have a list of emails that have unsubscribed in Constant Contact. Is there a way of uploading and running a procedure for this list to mark all the accounts with the corresponding unsub emails as NO? 

Thanks!