Attempting to import Outlook csv. address book to Thunderbird on new install of Mint 19. I have tried scores & scores of choices but it refuses to transfer the data in a like format. Sometimes it will transfer & when I click to open the imported csv. it won't open. Other times it will open but it's never , name, e-mail address etc etc. I have read all the choices & tried most of them. Thus should be EASY!!!!!!!!! I'm going nuts. I choose : Address book, Text file, I've saved the csv. file to Documents. I open that, choose all files, select the csv. file, Open, then I get the Import Address Book window. There's no explanation of the terminology here. I have tried scores of choices & none will import the csv. properly. What's Imported data for Record??? Field names??? You have all the fields choices but how in hell is anyone supposed to know what to choose? I have a business & this is VERY IMPORTANT! Help would be appreciated. I've looked all over for help w/ no solutions. Thanks