QuickData OST to PST Converter

4.8 Based on 50 Reviews

OST to PST Converter

A suitable program to migrate Exchange OST to Outlook PST with attached documents. This OST to PST converter tool helps to get back corrupted or orphaned, deleted emails contacts, tasks and calendars etc. through Hotmail, Office 365 OST to Outlook PST exportation.

  • Scans and repairs inaccessible Exchange, Hotmail, Office 365 OST to PST
  • Previews all mails components like: emails, contacts, calendars, tasks etc.
  • Export recovered OST file to Office 365, PST, EML, HTML and MSG.
  • OST to Outlook PST Converter offers to split PST file by size during the process.
  • Mail filter creates PST from OST file with a selected date range of emails.
  • Microsoft Outlook installation is required for migration & OST converter is compatible with all its editions

Top Rated Features to Convert OST to Outlook PST Format

quick and advance scan

Dual Scanning Modes to Migrate OST File

The OST to PST converter software offers dual (Quick and Advance) scanning options to migrate corrupted OST file. Quick scan mode can be used in minor corruptions since Advance mode allows recovering data from severe corruption cases.

preview data with item count

Preview Entire Mail Items After Scanning

After scanning, the software shows a complete preview of entire data, including emails, contacts, tasks, journals, notes, and calendars, etc. So that you can view and select important emails before Office 365 OST to PST conversion.

save in various formats

Export OST to PST, EML, HTML & MSG

Office 365, Hotmail & Microsoft Exchange OST to Outlook PST Converter works as a multi purpose tool and saves migrated data into 3 more reliable formats like: PST, EML, HTML & MSG. These functions help in moving email from Exchange, Office 365 & Hotmail OST file to PST or other email clients.

export selective items

Transfer Selective Mailboxes and Folders

In case if any one desires to transfer a few filtered items instead of the whole OST file, then this feature of the tool will come as a great help. The tool allows selecting / deselecting the required mail items in a single click.

restore hard deleted items

Different Naming Options to Export Emails

In Exchange Server a user can recover emails from OST file after hard deletion within the retention period. Once the retention period gets over then those lost items can be recovered using this OST file Migration solution.

restore hard deleted items

Restore Permanently Deleted Mail Items

The application preserves entire email header information like: to, from, cc, bcc, appointments and email attachments during the extraction. So convert OST file to PST in the actual email formatting as previous.

meta data

Split Resulting PST File by Selecting Date

Using this specific function of Exchange OST to Outlook PST conversion utility a user can divide or split resulting PST file in a required size. The migrate Office 365 OST to PST utility allows splitting PST file by size (1 to 100 GB) during the extraction process. Thus, creating several PSTs from an OST file.

split large pst file

Filter And Export Calendars

You can apply the date wise filter on Lotus Notes calendars to export calendars within a specific date range. The OST file to PST converter software will exclude the calendars 'of' selected dates and transfer them to an Outlook PST format.

accuracy copy

MS Outlook Installation is Compulsory

Microsoft Outlook installation is required to move deleted emails from an OST file through conversion method. The software supports all latest and older editions of MS Outlook including the latest version of Microsoft Outlook 2019.

preserve actual mapping

Maintain the Actual Folder Structure

Everyone wants to export offline Exchange OST to Outlook PST in there actual folder structure. So the tool automatically maintains the same folder mapping and retains sequence in the output as previous; including all folders, sub-folders, and custom folders.

What Is An Exchange OST File and Why Is It Important?

OST file is Offline Storage Table file which is used to access and send emails in Offline mode. “Cached Exchange Mode” configuration introduced by Microsoft, saves a copy of Exchange mailbox in local computer using Offline Folder files. Or if user configure their Hotmail and Office 365 account in Microsoft Outlook then it will save all the data of these mail clients in OST file. This way users can work Offline even if the internet is not available.

Main Causes for OST to PST Migration

Some most common aspects of this conversion is mentioned below:

  • Under certain situations, Exchange Server is forced shutdown either by virus attack or server overload, that time this conversion can be performed to access emails.
  • To recover corrupted OST files as well as permanently deleted emails, contacts, calendars, and tasks from an Exchange OST file, user can use Exchange OST to Outlook PST converter tool.
  • However, direct access to OST file is not possible due to security on an OST works to eliminate Windows NT authentication when you work offline.
  • In case if the original Exchange profile is modified or default location of OST file is changed, that time OST file turns orphan and needs a conversion solution.
  • In the case of Hotmail and Office 365 OST file, the direct access of data is not possible. Hence, if the file get corrupted it will require Hotmail or Office 365 OST to PST conversion.

How to Convert an OST File into a PST File?

There are two different methods using which a user can create PST from OST file.

1) When A User gets connected to Exchange Server Properly:

If you are able to sync data from the Exchange database that time you can directly move OST file to a PST file.

In case you have an orphaned OST file and still connected to Exchange server then you can open that OST file and export to PST by following these steps:

  • Create a new user profile (use same MAPI details)
  • Open orphaned OST file in the newly created profile
  • Once a file gets opened, migrate it to PST manually
  • File >> Import >> Export to a file >> Outlook data file

2) Use A One Click Solution

If your Office 365 or Hotmail OST file is corrupted or you are not connected to the Exchange server that time the above mentioned methods may not work. This necessitates OST to PST conversion tool to move offline corrupted, damaged, or orphaned OST file to a healthy Unicode PST file. This tool also helps users to recover damages OST file of Office 365 Outlook account or Hotmail database.

Download Trial

Demo Limitation:

Free OST to PST Converter export only 25 Items per folder.

System Specifications:

  • Disk Space : Around 50 MB free space for installation


Supported Platforms:

Watch Exchange OST to Outlook PST Online Video

Part 1 : Remove Encryption from OST file (S/MIME-Open PGP with Single Key)

Part 2 : Decrypt OST file Encryption (S/MIME-Open PGP with Multiple Keys)

Frequently Asked Question

Once you invest in the tool, it can be used as many times as you want. The software move unlimited number of OST files into PST.

The naming conventions are applicable only for MSG and EML files. If you cannot enable this option, possibility is you have selected 'PST' as the output data file.

No, for recovery and migration of data from an OST file to PST, the software does not require Exchange Server installation on machine. However, MS Outlook installation is mandatory to run the tool.

For Windows 8 and Outlook 2010, the location of OST file is C:\Users\%username%\Documents\Outlook Files\

Yes, this tool is proficient enough to convert Hotmail OST to PST or Office 365 offline created database file. Just save the file in local machine and migrate them in the required file format.

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