OST PST Viewer Customer Reviews

Average Rating: 4.8/5 - 289 reviews
Great software with a very neat interface, navigation is easy, it is like being in your email program again. Was able to load 30,000 emails in less than 2 minutes! Excellent product.
About OST PST Viewer

About OST PST Viewer

OST PST Viewer is a free* software designed to view PST and OST files in a few clicks without Microsoft Outlook. Open PST and orphaned OST Outlook files. Search and export contacts, calendar, and email folder content to PST and other file formats.

*OST PST Viewer free version has limited features. Advanced search, exporting files, copying text, saving attachments, and printing features are available only with Pro version of OST PST Viewer.

Open Outlook OST file

Using OST PST Viewer after you open the OST file, you can search in multiple files, copy any information you want.

Open Outlook OST file

Open Outlook OST file

OST PST Viewer is an application that allows you to view PST files without Outlook by using an Outlook-type interface. Open Outlook OST and PST content such as emails, contacts, calendars, tasks, journals and notes. Access Outlook data when Outlook is not installed, is unresponsive or fails to open at all.

Access all content

Access all content

Find and extract information stored in connected or orphaned Outlook data files. Access data from your Inbox, Sent, Drafts and other folders in the same way as seen in Outlook. Open OST and PST files of up to 50 GB in size.

Advanced search filters

Advanced search filters

Find the information you need with powerful searching features. OST PST Viewer scans and detects files and the content within them. Find specific data in the body of emails, or different file formats. Quick Search helps you to save time from looking for data. Specify multiple search criteria using Advanced Search to locate whatever you need.

Convert OST to PST

Convert OST to PST

Ensure that your data is safe at any time. Use OST PST Viewer to access and open OST PST files when your Exchange server is unavailable. Copy offline data and convert OST files to PST. Make changes as needed and reconnect your PST file to Outlook once finished.

Easy to copy or print

Easy to copy or print

Cut, copy and print content from within your OST or PST files. Access text in emails, events, tasks, notes and more at any time. Select any item, field, or text from an Outlook file, and paste wherever needed.

See how to open Outlook OST files with OST PST Viewer

How to open Outlook OST files with OST PST Viewer?
  1. Download install and launch OST PST Viewer on your PC;
  2. To add a file to OST PST Viewer, go to the "File" tab and click "Open";
  3. Choose the PST or OST file you would like to open;
  4. You can now easily explore your PST or OST file content without Outlook.
About 4Team Corporation

About 4Team Corporation,

the company behind OST PST Viewer

We are a Microsoft Gold Certified Partner and independent software developer and vendor. Since 1999, we have provided business solutions to our corporate customers and individual end-users worldwide. We are very proud to be highly recommended by our satisfied customers and offer award-winning support.

Our satisfied customers

Customers all over the world are successfully using 4Team Corporation services for personal and business needs

US ARMY
Sumitomo Corporation
L'Oreal - Denmark
Eurofins OPTIMED
Banque Populaire
Keolis
Maped Silco
New Mexico State University
University of Virginia
Aga Khan Foundation
AGCO Corporation
Imperial Tobacco
Mauser Group
State Bank of India