Are you facing trouble to solve how to convert EML to Thunderbird format,  then you can go with ZOOK EML to MBOX Converter that is a trustworthy utility to perform this conversion of the files format. It assures no data alteration while exporting the files format. It offers the users to export the files in the batch mode with all the attachments embedded in it. It preserves all the email properties(cc, bcc, subject, dates, etc.) and data integrity of the files intact throughout the migration process.

EML to MBOX Converter is supportable with all the available EML and MBOX based email clients. Moreover, it is an independent utility that can smoothly export the files format without the installation of any external utility. 

Read more details at:-   EML to Thunderbird Converter