Users can easily mass transfer of Thunderbird files to Outlook using well developed ZOOK Thunderbird to Outlook Converter tool. This tool allow users to transfer single or multiple Thunderbird files to Outlook PST format with complete mailbox data in few moments. It is designed or developed in such a way that both novice as well as professional users can easily transfer Thunderbird files to Outlook. The software protects entire data integrity and folder hierarchy of Thunderbird file during the transfer process. It is dedicated to recover and transfer Thunderbird file into Outlook 2021, 2019, 2016, 2013 and all below versions.