Export Contact Lists from Thunderbird 


  1. Open Thunderbird and choose Address Book.
  2. In the Address Book window, select  Tools, then Export.
  3. For each address book you have, enter an export file name and location, select the Comma Separated (UTF-8) format, and then click Save.
  4. You will now have a CSV file of your contacts that you can import into a compatible mail client, such as Outlook for Windows or UTmail+ on the web (mail.utoronto.ca). You may need to open the CSV file in a spreadsheet application, such as Microsoft Excel, and change the column headers in the first row to match the preferred format of your mail client.