Using zimbra to pst conversion software you can convert your zimbra file data in to pst file. stella zimbra to pst converter software convert all the zimbra file data in to office 365 account. Stella zimbra to pst converter software convert 32bit and 64bit zimbra file data in to pst file. this software can convert large file size zimbra file data in to pst file.
ZIMBRA TO PST ..3.png
For more info visit this link. Zimbra to PST Converter to convert Zimbra TGZ to Outlook,Office365