Batch Google Vault Converter Convert Google Vault MBOX and PST matter exports to Outlook PST, MSG, PDF, HTML and 10+ formats

Google Vault exports Gmail as MBOX or PST files inside a ZIP download from the Vault Exports tab. Each export also carries a metadata XML file with the account, sender, recipients, subject, labels, dates and the Rfc822MessageId and GmailMessageId of every message. Vault also exports Google Chat, Groups, Drive and Voice data. Exports stay available for 15 days after you start them and are then deleted, so download and convert without delay.

Yes, and it is the job most buyers run first. A Vault MBOX file does not open in Outlook. Univik Google Vault Converter turns the MBOX export into an importable PST with every email, attachment and Google-recorded header kept. The metadata XML custodian links are written into the PST folders. Outlook is not needed on the PC that does the conversion.

Yes, completely offline after the initial Vault download. Once you have downloaded your Vault export ZIP from Google Cloud, every conversion step runs on the local Windows PC and never opens a network connection. Your Matter data. Including privileged legal correspondence, healthcare communications and financial records. Is never re-uploaded to any server. This protects chain of custody and satisfies HIPAA and attorney-client privilege requirements.

The metadata XML is what ties each exported message back to Google. Every Gmail export from Vault includes a metadata.xml file that records, per message, the custodian account, Rfc822MessageId, GmailMessageId, labels, sent and received dates and a FileName value that matches the From_ line in the MBOX. That link is how you authenticate the export under Federal Rule of Evidence 901 and answer an FRCP Rule 34 request. Univik Google Vault Converter reads and preserves the metadata XML linkage, embedding custodian attribution and Google-recorded timestamps in the converted output.

Yes. Google Vault exports Gmail, Chat, Google Groups, Meet and Voice data from the same Matter. Univik Google Vault Converter handles all service types: Gmail MBOX emails convert to PST or EML, Google Chat transcripts convert to readable MSG or PDF with conversation threading intact, and Groups messages convert as standard email threads. All service types are kept clearly separated in the output structure.

Eight steps, most of them inside Vault: (1) Sign in at vault.google.com with Manage Matters, Manage Searches and Manage Exports privileges, (2) Open or create a Matter, (3) Click Search, set your query parameters (accounts, date range, keywords), (4) Click Search then Export, (5) Choose MBOX or PST format and click Export, (6) Monitor the export under the Exports tab, (7) When the status shows complete, click Download within 15 days, after which Google deletes the export, (8) Open Univik Google Vault Converter, load the ZIP and convert. Two limits from Google: no more than 20 exports can run at once across your organisation, and an export that runs past 24 hours stops with the message Export contains partial results plus a CSV of unprocessed accounts. Click Continue export to finish it.

Yes, 100% attachment preservation. Each attachment in a Vault Gmail export survives the conversion: Word, Excel and PDF documents, JPEG and PNG images, ZIP archives and inline embedded content. Note that if an attachment was deleted from Gmail before the Vault export, Vault will log a non-transient export error in the error report CSV. The converter includes these error flags in the conversion report so missing attachments are never silently dropped.

The trial converts 25 emails from each Vault matter export. Nothing else is locked: every one of the 10+ export formats, metadata XML preservation, custodian-separated output, Chat and Groups conversion, plus Google-specific label-to-folder reconstruction. No time limit. Verify custodian attribution and XML chain-of-custody handling before purchasing ($99 Personal, $299 Business, $599 Forensics).

A basic Windows PC is enough:

• Windows 7 through Windows 11, 32-bit or 64-bit builds
• 4 GB RAM, 8 GB when a matter export holds many custodians
• 50 MB for the program plus room for the output files
• .NET Framework 4.8 or newer

Nothing else has to be installed: not Outlook, not a Workspace account, not Vault access. The converter reads Google Vault ZIP exports as standalone files after download. A Google account is only needed to perform the initial Vault export.

To read a Vault MBOX or PST export without converting it, use the free Univik MBOX Viewer to open and read MBOX exports, or the free PST Viewer for PST exports. Use these first to assess the Matter content before committing to a full conversion.

Because Vault does not turn Gmail labels into folders. Google’s Vault Help states that the labels used in Gmail to classify messages are not converted into mailbox folders, so all messages appear in a single folder when the PST or MBOX is opened in a mail client. The label names still exist, but only inside the metadata XML. Univik Google Vault Converter reads those label values and rebuilds Inbox, Sent, Drafts and custom labels as folders in the PST, MBOX or PDF output.

Yes, for reading a small export. Google says a Vault MBOX opens in Mozilla Thunderbird, a text editor or some litigation support systems. In Thunderbird choose View, Headers, All to see the Vault headers. The trade-offs: every message sits in one folder, the metadata XML is ignored and there is no per-custodian split or PDF batch. Univik Google Vault Converter is for the cases where those three things matter.