With the help of the ConverterTools OST to PST Converter tool, you can easily and perfectly import OST mailboxes to Thunderbird, along with various email clients like Gmail, Yahoo Mail, Hotmail, Office 365, and so on. It also enables the transfer of OST emails to multiple file formats, such as PST, PDF, EML, MSG, MBOX, etc with all their email attachments for example, email messages, calendars, contacts, notes, tasks, etc. Moreover, this utility provides the advanced feature to exclude all copy OST emails during the conversion process, and it can smoothly preview your OST mailboxes before executing the OST saving process. This tool is highly supported on all Windows OS and Mac versions. Furthermore, it can maintain your folder structure as per the original files throughout the entire conversion process.