What file type is required when I share my contact list? Michael Mueller June 28, 2018 19:36 Updated Follow We ask that you share your contact list in an Excel file (.csv) with the following columns: supplier/manufacturer brand, contact name, and contact email. Click here for a sample CSV Related articles What should my contact list include? Label Insight Publisher Training Video What's next after I submit my contact list? Comments 0 comments Please sign in to leave a comment.