Get most popular OST to MBOX Converter tool which allows user simple way to import OST emails to Thunderbird. Tool will help users convert multiple OST emails to Thunderbird with attachments without losing any data. You can import OST emails to Thunderbird from all Outlook versions including Outlook 2016. It will maintain all the rich text & other formatting during the whole conversion process. OST to MBOX Converter tool import OST emails to Thunderbird with attachments along with its respective file. OST to MBOX Converter tool is very simple user friendly graphical interface anyone can easily handle & work with software. This software supports all the Windows editions like 11, 10, 8.1, 8, 7, etc. editions.