Univik Google Vault Converter

Yes — this is the most common use case. Google Vault MBOX files cannot be opened in Outlook. Univik Google Vault Converter converts Vault MBOX exports to fully importable PST files with all emails, attachments and Google-reported headers preserved. The metadata XML custodian links are embedded in the PST output. No Outlook installation is required on the conversion machine.

Yes, completely offline after the initial Vault download. Once you have downloaded your Vault export ZIP from Google Cloud, all conversion runs locally on your Windows PC with no internet connection required. 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 critical for legal admissibility. Every Google Vault export includes a metadata.xml file that links each exported message to its record on Google’s servers via Message-ID. This lets you prove that the exported data is authentic and unmodified — a requirement under FRCP Rule 34 for eDiscovery production. Univik Google Vault Converter reads and preserves the metadata XML linkage, embedding custodian attribution and Google-attested 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.

Follow these steps: (1) Log into Google Vault at vault.google.com, (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 complete (status shows green checkmark), click Download — download within 15 days before the export is permanently deleted, (8) Open Univik Google Vault Converter, load the ZIP and convert. Note: large exports can take several hours and may require continuation if Vault times out after 24 hours.

Yes, 100% attachment preservation. Every attachment in Google Vault archived Gmail emails is preserved during conversion: documents (Word, Excel, PDF), images (JPEG, PNG), archives (ZIP) 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.

Free trial converts the first 25 emails per Vault Matter export. All features are fully functional — all 10+ export formats, metadata XML preservation, custodian-separated output, Chat and Groups conversion, and Google-specific label-to-folder reconstruction. No time limit. Verify custodian attribution and XML chain-of-custody handling before purchasing ($29 personal, $99 enterprise).

Minimal requirements:

• OS: Windows 11, 10, 8.1, 8 or 7 (32-bit and 64-bit)
• RAM: 4 GB minimum (8 GB recommended for multi-batch Vault exports)
• Disk Space: 50 MB for installation plus free space for output files
• Framework: .NET Framework 4.8 or higher

No Outlook, Google Workspace account, Google Vault access or any other software dependency required. The converter reads Google Vault ZIP exports as standalone files after download. A Google account is only needed to perform the initial Vault export.

If you only need to browse and read your Vault MBOX or PST files without converting them, 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.