You can easily migrate Zimbra TGZ to PST using best software like Vartika TGZ to PST Converter. This software supports multiple file formats such as PST, MBOX, EML, EMLX, HTML, PDF and etc. This software has no file size limitation to migrate an oversized Zimbra file to PST. This software maintains Meta properties of email such as to, bcc, cc, subject, attachment and etc. This software supports batch conversion of multiple Zimbra to PST.
Know more info- https://www.vartikasoftware.com/fr/zimbra-to-outlook-migrator.html#