You can import contact lists in mass by uploading .CSV or .XLS files. The lists can contain contacts’ names, emails, and any other custom fields you need (age, location, phone, position, etc). All of the uploaded information will be passed through into the responses, so you will be able to see exactly who submitted each response.
You’ll be able to add contacts more easily and without time consuming data entry!
Here is a video tutorial on adding contacts: