ZOOK Software

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ZOOK OST to PST Converter

Efficient way to convert Exchange OST to Outlook PST Files

  • Converts all the data items from OST to PST
  • Installation of MS Outlook is not required
  • Preserves Meta-Properties & RTF of all emails
  • Easily converts crashed, corrupted, orphaned, cached & IMAP OST file into PST.
  • Supports to all Outlook versions i.e. Outlook 2016, 2013, 2010, 2007, etc.
  • Split large sized OST files into multiple parts. [Read More...]
  • Merge multiple Outlook OST files into one PST. [Read More...]
5 Star ratedRated 4.6/5 based on 36 customer reviews

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Noteworthy Features of OST to PST Converter

ost to pst

Migrates OST to PST Files

It allows users to convert OST to PST format with all the data items. Conversion help users to open OST file contents on Outlook as PST, independent of Server. It is the safe solution to export OST to PST format in few moments.

without outlook

No Outlook Installation Needed

The Tool does not require installation of MS Outlook in the system where the conversion needs to be carried out. Conversion software is also compatible with all the versions of MS Outlook.

export all item

Complete OST Items Conversion

It supports conversion of all the data items present in the Offline OST file and converts them easily to PST files. The data items include all the emails, contacts, calendar entries stored in its original form.

keep rtf

Keep Meta Properties & RTF

The tool ensures that all the meta-properties of the emails like subject, sender, receiver, size, etc. are kept intact after conversion. It also maintains the Rich Text Formatting of every mail.

email with attachment

Convert OST to PST with Their Attachments

Considering the importance of attachments, the software supports conversion of the attachments if present in the OST file emails. The attachments can be a document, image, pdf files etc.

support exchange versions

Supports All Exchange Versions

This utility will work smoothly on OST files created with any versions of MS Exchange. It also supports the OST file associated with Hotmail account configured in Outlook.

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For Home User

  • Suitable for Home User
  • Convert Multiple Files
  • Valid for 2 Machine
  • Valid for Single Geographical Location


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For Corporate

  • Suitable for Corporate User
  • Export Multiple Files
  • Valid for Multiple Machines
  • Valid for Multiple Geographical Locations


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Note: After placing the order, you will get an email containing full version details within 15 minutes. So, please use correct email id. If you did not receive your full version details, please contact us via Email or Live Chat.


Guide ‐ ZOOK OST to PST Converter

Utility Specifications

Trial Limitation

  • The Trial Version will convert first 25 emails only.

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Compatible With

  • Full Support to Windows 10 & all below Windows Version (32 & 64 Bit)
  • Supports all OST Files of any Outlook.


  • Minimum of 1 GHz processor.
  • 512 MB of RAM memory. (1GB recommended)
  • 50 MB of free hard disk space for installation.

Frequently Asked Question

Yes, this utility supports both formats of OST file namely ANSI and UNICODE. The resultant PST File will be in UNICODE file format.
Yes, the software has been designed in such a way to support conversion of bulk-size OST mailboxes to PST files. Therefore, you can easily convert your 25 GB OST mailboxes to PST.
No, the conversion tool does not need the installation of MS Outlook in the system used for conversion. It supports with all the versions of Outlook i.e. Microsoft Outlook 2016, 2013, 2010, 2007, etc.
Yes, the software has capability to convert all the emails and its attachments, calendars, contacts, etc. if present in offline OST files to PST files. It safely extracts entire data of OST file backup as Outlook PST format by using the most efficient tool OST to PST Converter.
Yes, the software offers to spit and merge PST file from IMAP OST file according to user's requirement. It also facilitates to create a separate PST per user by ignoring the system folders. It is a safe solution to recover and repair OST file for MS Office Outlook.
Yes, the tool is technically designed by using edge cutting techniques which easily merge multiple Outlook OST files into one file. It allows user to select two or more OST files and join them into single OST file.

Overview ‐ ZOOK OST to PST Converter

OST File stands for offline storage table that is replica of Exchange mailbox, which is generated at local end. It permits users to access all mail data without internet connectivity. It used for cached storage.
PST is personal storage table that stores all Outlook data. It's also known as Outlook data file that contains all the mail components, which includes attachments, emails, journals, contacts, notes, etc. in a single file.
There are several issues of OST files such as file size problem, orphan state, synchronization problem, etc. due to which users need to import OST to PST file format. Sometimes, OST files are inaccessible or corrupted because of which conversion is required. It enables user to repair OST file and move PST file from OST of Microsoft Office Outlook.
For OST files to PST conversion, we can use add-on import and transfer OST file to PST file format. However, this method is useful only when user is connected with MS Exchange Server. Another alternative for reliable conversion to change OST file to PST format is OST file converter to fix OST issues. ZOOK OST to PST Converter is the reliable solution to migrate OST to PST format without altering any data.
To create a PST file from OST file, it is necessary to perform the simple procedure as described below: -
  • Download OST File converter and launch it in your system.
  • Now, choose the desired OST file/folder from the system.
  • After that, users need to choose the file location to save OST file as PST format at desired resultant location.
  • Finally, in the last step click on Convert button to change OST to PST format.

In few moments, the utility can easily save OST file as PST format at selected file location. It is the perfect solution to fix OST file error by converting OST file to PST format.

Users will get their OST file at the following defined location C:\users\username\AppData\Local\Microsoft\Outlook\xxxx.ost. Usually, it is totally depend on the Microsoft Outlook version that you are using in your system.

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