Stellar Converter for OST

What Stellar Converter for OST is

Stellar Converter for OST converts Outlook OST files into PST files, including when the Exchange mailbox or Outlook profile is unavailable. It can extract emails and attachments as well as contacts, calendars, tasks, notes and journals, and it supports encrypted OST files. Users can save mailbox data as PST, MSG, EML, RTF, HTML or PDF. The Technician edition supports batch conversion and exports to live Exchange and Microsoft 365. A free demo previews converted data before export and, according to the product page, has no file-size limitations. The FAQ says OST file size is unlimited; large PST output can be split automatically at around 45 GB. It runs on 64-bit Windows 11, 10, 8.1 and 8. Listed plans include Corporate at $79 a year for five mailboxes on one device, Technician at $149 a year for unlimited mailboxes, and Toolkit at $199 a year for unlimited mailboxes and seven tools. The listed starting price is From $99. Stellar Data Recovery says it is ISO 9001 and ISO 27001 certified.

Who it suits

It suits Windows users who need to recover or convert OST mailbox data, including in cases where a mailbox or Outlook profile is unavailable. Technician and Toolkit include bulk licensing options for up to 500 devices or systems.

Limits

The Corporate plan covers five mailboxes on one device. The free demo is for previewing converted data; Technician and Toolkit offer unlimited mailboxes.

Getting started

1. Open the Stellar Converter for OST website
2. Choose a Corporate, Technician, or Toolkit license
3. Install it on 64-bit Windows 11, 10, 8.1, or 8
4. Load the Outlook OST file
5. Preview the converted mailbox data
6. Select an output format and export

Verdict

Stellar Converter for OST offers mailbox extraction, preview and several export formats, with Technician adding batch conversion and live Exchange and Microsoft 365 exports. It is paid software, and its supported systems are limited to 64-bit Windows 11, 10, 8.1 and 8.