BitData Migration Thunderbird Converter – a precise method for converting Thunderbird based files into desired file formats like MBOX, PST, EML, Gmail, HTML, and many more. The application converts all Thunderbird items like SBD, MBOX, EML, etc. And the prominent  feature of this app it allows multiple Thunderbird files migration in single processing. And it can be operable without Thunderbird support. Download this software on Windows and Mac  Operating Systems. And also do try its free demo option which enables to change 25 Thunderbird items free of cost.