I recently upgraded my system to Windows 11 and now need to switch my email client from Mozilla Thunderbird to Microsoft Outlook. All my important emails, including attachments and folder structure, are currently stored in Thunderbird. I tried exporting my Thunderbird data, but Outlook does not recognize the exported files directly. I am confused about the correct and safe way to migrate Thunderbird emails into Outlook on Windows 11 without losing any data. Has anyone successfully done this migration? What is the best method to move Thunderbird emails to Outlook on Windows 11?