As we all know that Thunderbird and Outlook are two different email clients and both support different Mailbox properties to save profile data in the user local system. Mozilla Thunderbird uses MBOX and on the other hand, Outlook supports PST and OST. But Outlook imports data in PST file format only. So there is a need to convert Thunderbird to PST. There are many Thunderbird converter software available in the market and each has its process to export Thunderbird to Outlook PST, some are easy to use and on the other hand, some are hard to operate. MailsSoftware Thunderbird to Outlook converter is one of those tools, which make the whole conversion process easy and 100 % risk-free. Here is the complete process to know how to use Thunderbird to Outlook conversion utility - Download the tool for FREE from MailsSoftware official website – 1 - Click on Add File >> Choose Mozilla Thunderbird option >> Auto Load. 2 - Press Next >> The tool shows the complete data of TB MBOX. 3 - Click Export >> Select "PST" as an export option. 4 - Choose the "PST conversion option" as per your choice. 5 - Provide Destination Path >> Press Export. The TB MBOX file will be converted to Outlook PST now you can import this file in any Outlook version.