PST Converter Tool Frequently Asked Questions

Yes. Outlook, Exchange and Office do not need to be installed. Prism reads raw binary blocks directly off disk using an internal 64-bit engine that processes files directly without requiring Outlook.

When an oversized archive experiences corruption or the built-in Inbox Repair Tool (ScanPST) encounters difficulty repairing severely damaged block tables in place, Prism provides a non-destructive alternative. Prism operates in strict read-only mode on your original source file, reading readable node allocations directly and streaming undamaged messages into fresh destination files without altering the source archive.

The free trial lets you load any PST, inspect the entire folder hierarchy, and preview rich HTML email bodies along with full RFC headers and attachments. You can export up to 50 items per folder to check the result before you buy.

Yes. The engine reconstructs your folder hierarchy while extracting document attachments in their original format, preserving inline images, and retaining standard RFC email headers (From, To, CC, BCC, Date, Subject, Message-ID). You can verify folder hierarchy and formatting in your own sample files using the free 50-item evaluation.

Yes. In addition to emails, Prism extracts Contacts (to vCard or CSV) and Calendar appointments (to standard iCal/ICS format), and can synchronize them to supported cloud destinations such as Google Workspace and Microsoft 365. Note that Outlook-specific personal views or local client rules remain client-specific and are not converted.

Yes. It is tailor-made for legal teams and compliance audits. In Step 4, choose PDF to produce ISO 19005-1 compliant PDF/A records with sequential Bates stamping (such as CASE-0001), custom header/footer coordinates, and original attachments embedded directly inside the document.

Yes. You will not need complex Azure AzCopy command lines, PowerShell scripts, or network upload SAS URLs. Administrators authenticate once using Microsoft 365 Graph API delegated access, load all corporate PST files into our User Mapping table, and let the engine import PST to Office 365 directly into target cloud mailboxes.

You won't lose a thing. Prism has a built-in SQLite Checkpoint Resume Center. Every converted item gets cryptographically logged. If your laptop sleeps or your Wi-Fi resets, just reopen the app and hit "Resume"—it picks up right from message #41,209 without creating duplicate records.

Yes. It's native ARM64. We built a true Universal Binary that runs natively on M1, M2, M3, and M4 Apple Silicon Macs as well as Intel chips—no Rosetta 2 translation layer, no Windows virtual machines. It's notarized for macOS Sonoma and Sequoia.

It reads older ANSI PST archives (Outlook 97–2002) and modern 64-bit Unicode PSTs (Outlook 2003–2024 and 365). For password-protected PST files, check the trial on your own file before buying.

Easily. Select PST as your target format and set an automatic split boundary at 2GB, 5GB, 10GB, or 20GB. The engine partitions your massive archive into clean, healthy volumes that won't lag or crash Outlook when mounted.

No cloud service of ours is involved. Every parsing routine, cryptographic hash calculation, and file conversion happens strictly in your computer's RAM and local disk. Prism does not send your email contents to Prism servers. If you choose a cloud destination, data goes to that service.

Following successful payment, your digital license key is delivered to your billing email address. If you need your key resent or require assistance with activation, you can contact our team anytime via our Contact Support page.

We provide free evaluation versions for all tools so you can test compatibility and conversion fidelity on your own data before buying. If you encounter a verified technical limitation or defect that our engineering support team cannot resolve, purchases are covered under the terms detailed on our Refund Policy page.