You can try most effective ZOOK Thunderbird to Outlook Converter tool, that directly convert single or multiple Thunderbird files to Outlook PST format including emails, attachments, contacts, notes, journals, etc. This utility is comprises of highly effective and secured algorithm that led smooth migration of Thunderbird files to PST format without any error. It is an independent tool that’s why no need to install Mozilla Thunderbird or Microsoft Outlook. The resultant file would be accessible to all editions of MS Outlook. A free demo edition is also available to checked out the features and functionality of the software. Get more info- https://www.zooksoftware.com/thunderbird-to-outlook/