#1 Best Premium OST to PST Exporter v4.0

This Outlook OST file exporter comes with the latest and upgraded algorithms, that first scans the complete OST mailbox and fixes all bugs. After that, it shows the complete and actual preview of the Outlook OST file. Export OST file to PST Outlook 2016, 2019 and all earlier with full security of data with Mailsdaddy OST to PST Converter.

What Makes This OST Migration Tool Superior?

  • Transfer the complete OST mailbox content such as (contacts, calendar, task, to-do list, folders, and all email messages) to Outlook PST.
  • The data of OST file is migrated to PST in its original property such as (rich text formatting, attachments, to, from, cc, bcc, etc)
  • Export contacts from OST file to PST in VCF format and calendar in ICS format.
  • Transfer OST file to new computer with multiple export option such as OST to PST, EML, MBOX, MSG, MHTML, EMLX, RTF, HTML.
  • Import OST file in Live Exchange with the Business and Enterprise version of OST to PST Exporter. With this premium feature, migration to the Exchange Server is done in just a few clicks.
  • The Software allows to select multiple OST files at one time and transfer all offline line data to PST, live exchange, MBOX, MSG, and various other formats.
  • The Business and the Enterprise license version user can transfer OST file data to Office 365 account along with all its original properties.
  • One of the best features of this OST to PST Exporter tool is it provides an option to Split large OST files into small PST files in your required size format.
  • This OST migration tool maintains the original hierarchy of all folders and subfolders while showing the preview of the OST mailbox.
  • Open any orphaned and highly corrupted OST file easily and without losing it data with this utility.
How to Export OST File to PST

Know How to Convert OST to PST Without Outlook?


Till now you have seen the benefit of using this OST file exporter, let's look at how you can add an OST file in this OST export utility and see & convert the complete data.

Browse OST File

Topmost Features of OST File Exporter Software

OST File Conversion

Complete Migration with 100 % security

OST to PST Exporter is programmed with rich algorithms that transfer the complete data of Outlook offline storage table to Outlook PST and various other formats with zero risks of losing data. It advanced machine learning prevents data from being lost during the conversion process.

Easy Method

Easy to Use

The software is designed with a responsive and user-friendly interface. There is no need for any high tech knowledge to run this software, even a Non-Tech person can use this software easily and perform the conversion process without any hustle and without losing data of even a single email message.

Steps to Export

Complete transfer in just 3 clicks

Convert OST file to PST in just three clicks (load, convert and export), you can migrate the complete data of your offline storage file to Outlook PST, MBOX, EMLX, MHTML, RTF, EML, HTML and various other formats in just 3 clicks.

Search OST Emails

Search and Export any email

The tool comes with an advanced search option, using this search option you can search and find any particular email message in your OST mailbox. Filters like To, From, Subject, Body, Date Range can be applied for searching. You can also export the data of searched emails.

export OST to multiple files

Multiple Export Options

Export OST file to PST Outlook 2016, 2019 and all earlier versions and in many more formats like MBOX, EML, EMLX, RTF, MHTML, HTML with OST File Exporter. Export contacts from OST in VCF & CSV format and calendar in ICS format. With business licensed version transfer OST data in Office 365 and Live Exchange.

Restore Soft Deleted OST Emails

Recover Soft Deleted items

The rich algorithms of the OST export tool can recover the soft-deleted items from the offline storage file such as contacts, emails, calendars, task notes, and journals. This amazing feature of the tool is very helpful and makes it one the best OST converter.

Preserve Folder Hierarchy

Maintain Folder Hierarchy

The data of the OST file is shown in its original property and original folder hierarchy. A complete actual hierarchy of all folders and subfolders is maintained while displaying the preview of the Outlook OST file.

No Pre-Requirement

No need for Outlook and MS Exchange

The software is specially designed for Windows and supports all windows version. One of the topmost features of the utility is, it does not require the installation of MS Outlook and connectivity of the exchange server to view and to transfer the OST file to new computer.

Export OST to PST

Serve a Healthy PST File

"Change OST to PST" utility provides the user with a fully healthy and compatible UNICODE PST file. The user can import this PST file in any Outlook version, all the important data of the user is fully preserved in converted PST file in its original property.


Free Unlimited OST File Exporter

For the benefit of the user, we made available a Free Demo version of the software. By downloading the trail version you can get familiar with all its features. The Demo version shows the complete data of multiple OST mailboxes at the time and exports the first 20 items from all folders and subfolders.

Licensed Versions Price List of Free OST to PST Migration Tool


Personal License


  1. Only for 2 Machines
  2. File Size Limitation
  3. Bulk Export
  4. Money Back Guarantee
  5. One Time Payment
  6. Lifetime Support
Most Prefered

Business License


  1. Only for 50 Machines
  2. Import OST to Office365
  3. Bulk Export
  4. Money Back Guarantee
  5. Import OST to Exchange Server
  6. Lifetime Support

Enterprise License


  1. Only for 100 Machines
  2. Import OST to Office365
  3. Import OST to Live Exchange
  4. Bulk Export
  5. Money Back Guarantee
  6. Lifetime Support


Frequently Asked Questions of Microsoft Exchange OST to PST Converter Tool

Download & Install the Demo version from the site >> Open it >> Provide Activation Key >> Upgrade the Demo version to complete an active version by purchasing the licensed key

The demo version comes with a certain restriction, such as using it you can only transfer the first 20 items from all folders and subfolders of OST mailboxes. If you need to export the complete file then you have to upgrade the Demo version to a fully active licensed version.

1 – Click on Add file >> Browse the OST file from your system - The software scans the entire file and repairs all the bugs and viruses and then shows the complete data.

2 – Click on Export >> Choose "PST" as an export option.

3 – Provide the Destination Path >> Press Next - The OST will change to PST.

Yes, you can export all the contacts from your OST mailbox using this amazing tool. Just run the software in your system and

  • Add OST Mailbox.
  • Click on Export >> Choose contact only (.vcf or .csv) as export option.
  • Provide the Destination Path >> Press OK

Yes, the OST file can be transferred to the new computer. First, convert the OST file in Outlook PST format using this utility then you can easily move it to a new system.

MailsDaddy all licensed products come with lifetime validity. Whether the license is Personal, Business, and Enterprise.

Yes, you can search for any folder or file and export them to various available formats.

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