How to Convert Zimbra TGZ to PST File Format Safely Without Data Loss?

I have multiple Zimbra TGZ mailbox files that I need to migrate to Microsoft Outlook. I'm looking for a reliable way to convert Zimbra TGZ to PST without losing emails, attachments, contacts, calendars, notes, or folder structure. I also need a solution that supports bulk conversion because I have several TGZ files to process. I tried a few manual methods, but they seem complicated and take a lot of time. Can anyone recommend an easy and secure TGZ to PST converter or share the best method for completing this migration? I would appreciate suggestions based on personal experience, especially if the tool maintains data integrity and works with the latest versions of Outlook and Windows.