Free OST File Reader to View MS Outlook OST Email Information

MS Exchange OST files being a sensitive file and show synchronization errors that make users unable to access email data. To overcome this type of situation, it becomes necessary to hire online freeware utilities to view, read and Open OST file. And in this post, we will make you familiar with freeware online solution named as OST File Viewer that are professionally equipped to solve OST file corruption.

Introduction to OST Files:

OST (Offline Outlook data file) file are used when you have an Exchange account and you want to work offline or use the default cashed exchange mode.  OST are always copies of items that are saved on a mail server & don’t have to be backed up. And it is synchronized with the exchange computer when a connection is re-established.

ost file viewer

Image source

OST file comprises of following items which are mentioned below:

  • Mailbox data i.e. Emails, Contacts, Notes, Calendars, Tasks, Journals
  • Public folder
  • Hidden items and other overhead
  • Shared folders

Causes of OST File Corruption

As OST Files are very sensitive in nature and this includes data storage device failures, virus or malware, networking issues, improper shut down of MS Outlook and many other software issues. But in all these one of the most common issues reported in OST files and i.e. Synchronized issues. According to the user’s personal experience some errors in OST Files occurs mostly when they synchronized OST file with Exchange Sever.

After all the discussion from above error appears in two situations

The OST file is corrupted/damaged and it is in unrecognized mode by Outlook

Most of the time OST file fails to synchronize with associated mailbox so in such condition it will display this type of error messages.

Powerful Solution to Read OST File

All the above issue related to OST File, users are not able to open, view OST email file. And there are many other major reasons when Outlook reports error when you try to Preview OST File. Now the question arises in everyone’s mind what to do in such critical conditions? Don’t worry about all the problems, you can easily get access to OST file without installation of MS Outlook in your system. Because a tool is especially designed to resolve all the issues related to Offline data file i.e. OST File Reader. Now I describe some additional functions of OST File Viewer which are given as:

Free, Trustworthy and Reliable:

These three words are sufficient to describe the OST Reader. It is one of the superlative utility all over the worldwide. By using this tool you can easily open, read and preview OST email files.

Explore OST files without Exchange Server

This tool allows access to Exchange Offline folder file without establishing a connection with Exchange server. The tool scans OST file and displays it’s all content including calendar items, notes, emails, contacts etc.

Easy to Operate

It provides an interactive and user friendly GUI which make it quite easy to operate. All its functions are self-explained and simple. Any kind of assistance is not required to operate the program.

Multiple OST File Preview

You can get the benefit of previewing the items of several OST email message with all their attributes. You will be able to read the properties such as the subject of email messages, sent items, size of the messages etc.

Capable to view, open OST email messages without MS Outlook

The software is able to read OST file with attachments, images, formats etc without installation of Microsoft Outlook

Compatibility of the Freeware Utility

Operating System support is found as Windows 10, Windows 8, Windows 8.1, Windows 7, Windows XP, and Windows Vista. The software is found as works with Outlook 2016 (64 and 32 bit), 2010, 2007, 2003 versions.

However, with so many qualities one drawback is present with an OST Viewer is that it can open, preview, read and explore the OST file but can’t save, because it does not contain the Save option

How to read, explore OST files without MS Outlook?

Here mentioned are few steps to read and Open Orphan files without installation of Outlook

  • Firstly, Run OST File Reader Tool and click on Add File
  • Now, Select OST file from your machine press Open Button
  • Here, you showing all the information from selected OST file such as- Emails, Attachments, Contacts, Calendars, Tasks, and Notes.


Free OST File Reader is found as one of the best for all the users’ purpose being a free utility, it does not have any limitations or restrictions to explore view and read email items. It allowed the user to view all OST email message easily and effectively. With so many additional and ultimate functions made it one of the best tools all around the globe.

Deepak Gupta

Deepak Gupta is a Freelancer. He does freelancing related to Ebook Conversion, SEO, SEO Copy writing, Guest Blog Posts, and much more. He can be contacted at

Latest posts by Deepak Gupta (see all)

(Visited 6,307 time, 1 visit today)