Free Methods to Export & Convert Unlimited Outlook OST to PST File

[email protected] | | 4 minutes read | Modified on: 14-11-2019

Are you in a need to export emails from Outlook OST to PST but not able to get the solution that can help in error-free process? No worries, the segment has provided multiple approaches i.e. manual method and third party OST Converter application. However, before starting the process, it is important to know the main reasons that are responsible to export emails from Outlook OST to PST.

Why to Export Emails from Outlook OST to PST?

There are many reasons exists due to which users export emails from Outlook OST file to PST format. Some of them are listed below:

Sudden Crash or Exchange Server Failure

MS Exchange Server is susceptible to unexpected crash, virus attack, system failure etc. When a Microsoft Exchange Server crashes due to any reason, then one cannot connect to Exchange Server again. Such situations can hamper work in business, as they are very difficult to handle. This can cause error in Outlook profile. Thus, conversion of OST to PST can help in avoiding such circumstances.

Unintentional deletion of Exchange Server account

For e.g. by mistake you have deleted account of Exchange Server and all your data is lost. To avoid this, you can take backup of OST file in PST format.

Migrating OST Data to New Computer

Lot of users wants to move OST files to new computer. This is possible when a user export OST to PST. This situation arise when an organization moved to new machine and shifting data from old system to new one.

Maintenance of Microsoft Exchange Server

During the downtime of Exchange Server, it becomes difficult to retrieve corrupted/lost mailbox folders. It is better to take backup of OST file to PST beforehand to avoid this issue.

Therefore, if you are using server for business purpose, make sure to take backup of stored items frequently to avoid misshapen. Now, let us discuss multiple methods for exporting emails from Outlook OST file to PST.

There are three manual methods present to export emails from Outlook OST to PST. We have discussed all possible solutions for the process. You can choose the suitable one and execute the task without trouble.

Manual Methods to Export Emails from Outlook OST File to PST

Using Import/Export Tool

With the help of this process, a user can export OST data to PST. This can be implemented by saving data in Excel and CSV format.

  1. Open Microsoft Outlook in the system.
  2. Go to File and choose “Import & Export” option from the options available.
  3. Now, select “Export to a File” and hit Next to continue.
  4. Click Personal File Folder (.pst) and press Next button.
  5. Navigate to parent root and select the checkbox of Include Subfolders.
  6. Now, browse and choose target folder.
  7. Hit Finish.

Using Drag & Drop Process

In the method, simply create new PST folder and by dragging and dropping process, one can move all items into that new created file.

  1. Open Microsoft Outlook in the machine.
  2. Make new PST folder in the profile.
  3. Simply drag all the required folders and drop them into new created PST file.

Using Archive

  1. Open MS Outlook in the system.
  2. Go to File and select Archive.
  3. Choose file/folder to archive.
  4. Browse the location to save file in PST format.
  5. Click Finish.

By utilizing the method, one can export emails from Outlook OST file to PST. Some of the drawbacks are as listed:

  • Requires same account of Exchange Server.
  • Corrupted OST file is not supported for conversion.
  • Consumes lot of time, as steps are complex to operate.
  • Not suitable for professional users.
  • Unable to maintain structure of transferred data.
  • Data loss possibility.

Manual method is free to implement but bounded by heaps of drawbacks. Thus, experts designed OST Converter application.

OST to PST Converter – Best Trustworthy Utility to Export OST to PST

OST Converter aka OST to PST Converter is an advance and cost-effective trustworthy utility to batch export emails from Outlook OST file to PST with emails, contacts, calendar and other items. The application delivers simple and trouble-free interface so that all professionals and non-professional users can use the working steps and precisely export Outlook OST file to PST. OST to PST Tool also provide multiple sun-options that can be applied accordingly to get the desired outcome. Follow the steps and check how to export emails from Outlook OST file to PST:

Step 1. Download, launch and open OST to PST Tool on Windows machine.

launch ost file converter tool

Step 2. Click Select File/Folder button and add OST files by clicking on Add Files, Add Folders and Load Outlook Profiles.

add OST file

Step 3. Software start reading OST file and listing entire data items with checkboxes as hierarchical structure on left side of the software screen. You can select or deselect the checkbox of required folder that you want to export.

select data items of OST

Step 4. Now go to Saving Option button and choose Export to Outlook PST option from the list appearing.

choose saving option

Step 5. Choose sub-options as per need – Create Separate PST per User, Split PST, Change Language, Destination Path and Create log for messages not created.

set options

Step 6. Press Convert button to start the process. After it is finished, an alert message will appear on the screen “Conversion Completed Successfully”.

process completed


The blog has discussed multiple ways to export emails from Outlook OST file to PST format. Download OST Converter free demo on any Windows OS machine that allows to export first 25 files from each OST data item to PST free of cost. With the help of FREE DEMO, you can evaluate and analyse the software functioning and features. You can also check the performance of OST to Office 365, Exchange Server, IMAP Server, Thunderbird, Live Mail, AWS, Yahoo Mail and more.