Assisting with email client transition

Hey everyone, I've got a friend who's been struggling for a couple of days trying to figure out how to transfer their address book from one email client to another. Any suggestions or reliable instructions you could recommend?

Hello, I've been in a similar situation before, and I found this helpful transfer contacts from Thunderbird to Outlook . It provides step-by-step instructions on how to transfer contacts from one email client to another, and it's quite easy to follow. This article explains in detail how to use both migration methods to convert address book in Outlook, provides step-by-step instructions and a video tutorial. Check out this blog, maybe it will help your friend.