GainTools PST converter is an outstanding solution to convert mailbox from Outlook PST file to EML, MSG, MBOX, and VCF format. With this tool, you are permitted to import mailbox items from Outlook PST file to Thunderbird, Windows Live Mail, Outlook Express, Zimbra, Entourage and other email clients without limitation for countable files. It convert your multiple PST files into other files format without any extra effort.