ZOOK Software

ZOOK SoftwareZOOK Software

ZOOK OST to PST Converter

Efficient way to convert Exchange OST to Outlook PST Files

  • Converts all the data items from OST files 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.
  • Users can split and merge PST file by converting OST file backup as PST.
  • Quickly converts a separate PST file for users.

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Noteworthy Features of 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.


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.


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 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.


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 based Email Clients.


  • 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 if present in offline OST files to PST files.
Yes, the software offers to spit and merge PST file from IMAP OST file according to his 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.

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.
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 file format is ZOOK Software's OST file converter to OST issues.

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