Get a hassle-free solution with ZOOK PST to MBOX Converter software software to export unlimited number of PST files to Thunderbird without installation of Microsoft Outlook. The software provides few steps solution to export multiple PST files to MBOX format for Thunderbird. It is dedicated tool import complete mailbox data of PST files to Thunderbird(MBOX) including emails, contacts, notes, attachments, tasks, journals, etc. It is one of the best tools to access or open your Outlook emails in MBOX supported mail. clients like Thunderbird, Entourage, Netscape, Apple Mail, etc. This tool is fully compatible with all MBOX based email clients.