The simplest way for converting PST files into the Zimbra file format is Softaken PST to TGZ converter tool. This utility supports all versions of Windows OS. The big Outlook PST files can be swiftly converted by users into the TGZ file format. Without MS Outlook, the software converts PST file items - emails, contacts, calendars, notes, tasks, events, etc. - into TGZ file format. Every user of Windows can install an application with simplicity. Get the Outlook to TGZ converter free demo version downloaded.

Visit here: https://www.softaken.com/pst-to-tgz-converter