Import Thunderbird to Outlook - Version 4.0 Looking for an easy to use and less expensive email conversion tool to Import Thunderbird to Outlook? Into Thunderbird single emails or messages are save into .EML file format, to access these EML files into MS Outlook you will have to convert EML to PST, since Outlook use PST format to save its files. Used the highly advance EML to PST Converter software designed by PCVARE to help users to Import Thunderbird to Outlook. EML to PST Converter software also import EML files from Windows 7 Mail, Windows Mail, Outlook Express, Thunderbird, etc to Microsoft Outlook PST format. Import Thunderbird to Outlook at just $49. For free demonstration download the demo version of EML to PST Converter software right away.