How to open OST file

Free OST PST viewer software to open .ost file in Outlook or without Outlook. Recover data and import .ost files into Outlook 2016, 2019, 2013, 2010 and older.

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OST PST Viewer Customers Reviews

Average Rating: 4.8 - 264 reviews
I used OST PST Viewer to access a large old OST file. I was able to find the information I needed from some old emails, quickly using the search function. Using OST-PST viewer was that easy.

Open an OST files and other OST PST Viewer features

Open .OST file in or without Outlook

Open .OST file in or without Outlook

Open and read the orphaned .ost file without Outlook installed. Import .ost files in Outlook by converting to .pst file using OST PST Viewer. Microsoft Outlook 2016, 2013, 2010 and older versions supported.

Recover data from an .OST file

Recover data from an .OST file

Extract mail, contacts from .ost file, convert to .pst and connect to Outlook. Export and convert .ost to .msg, .vcf, .pdf, .ical and other file formats. Open .ost file email attachments. Recovering data from Outlook OST files is easy with OST PST Viewer.

Access and search into OST file

Access and search into OST file

Automate .ost and .pst file search. Open and read content of large archive OST file created by any version of Microsoft Outlook. Fix Outlook search problems by opening .ost file using OST PST Viewer. Search and extract messages and attachments from your OST files. OST PST Viewer is the best tool to perform .ost file forensics and searching for evidence. Use Pro version with advanced search, and filter the items by date, field or folder.

How to open OST files without Outlook

Just follow these simple steps:

  1. How to open OST files in Outlook: Open and convert .ost file using OST PST Viewer PRO;
  2. Import .pst file to Outlook existing data file. As well you can open .pst file in Outlook just by clicking on it.
  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 an OST file you would like to open;
  4. You can now easily explore your OST file content without Outlook.
How to open OST files without Outlook
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.

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

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