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Free Methods to Convert OST File to PST

An OST file is also known to be an offline storage table which is an offline Data File utilized by Microsoft Exchange Server. Users can also convert OST file to PST through various methods. Through the Microsoft server, the users will be able to work with their desired databases even when there is no access to the mail server.

It can be said that the PST files are more favorable and compatible as compared to the OST. This is because the PST file can be run on the Microsoft Outlook application and this criterion does not fit in the case of the OST file.

Effortlessly Convert OST File to PST without Outlook

  • Use this advanced SysInspire OST to PST Converter Software to quickly export OST to PST Outlook 2010 and other updated versions.
  • This Software export contacts OST file into PST, MSG, CSV and VCF file without losing any information.

3 Methods to Convert OST File to PST Manually

So now we will discuss the best free methods used for OST to PST File Conversion. Remember in all these 3 manual methods you will require an MS Outlook application.

First method: – Using Export and Import Exchange Mailbox

  • The most important thing is MS Outlook installation is required
  • Then, open the MS Outlook application and scroll through the File menu, after that select the “Import and Export”
  • When you come across the Import and Export Wizard, the user will have to click on the ‘Export to a file’ option and then hit on the Next button
  • Now select the prime Outlook Data File (.PST) and then click the Next option to proceed further
  • After that just select the mailbox folder that you want to export to PST
  • At last, browse and select the designated folder where you want to save the new PST file and click the Finish button.

Second method:- Drag and Drop Method

  • As seen in the previous method, here also MS Outlook establishment is required
  • Firstly user need to create a new PST file in the Outlook profile
  •  After that choose the mailbox items that you want to export to PST Free and drag it in the newly created PST file.

Third method:- Microsoft Outlook Archive Feature

  • Open the MS Outlook application and Go to the file select Options
  •  After that click on auto-archive settings
  • In last browse the storage location where you want to save the archived file
  •  Then click on the Finish button.

Also take a look on these Articles:-

  1. Free tool to Export Exchange Mailbox to PST
  2. How to Open OST file in Outlook

So, here we discussed the 3 Free OST to PST Conversion method. But as you know manual methods have many loopholes. The main problem is that there is a compulsory requirement of the MS Outlook installation. The second thing there is a high chance of data loss or server error issues.

So, it becomes necessary for the users to use third-party software to Convert OST File to PST.

Convert Outlook OST to PST by using SysInspire OST to PST Converter Software

The SysInspire Software scans the OST file and removes all their errors to make it usable for the users. Also, this Outlook OST File to PST Converter Software enables the users to convert OST emails to PST, EML, MBOX, HTML, MSG, and Office 365. This Free OST to PST Converter Software also tends to convert selective OST folders to outlook PST and saves plenty of time. It allows the user to split recovered PST file into smaller sized PST files between 1GB to 5 GB.

Working Steps For OST to PST Conversion using the Software

  • Download and open the SysInspire OST to PST converter Software
  • Select the required OST file by clicking on the File menu that you want to convert
Select OST file
  • You can check the live preview of the OST file database and all other items on the right panel of the screen after scanning the OST files
Live preview of mailbox items
  • Select the Convert button to move further to the conversion section
Choose the format
  • Just select the conversion format in which you want to convert your OST file
  • After the OST files conversion, the user will see a confirmation message as shown below-
Completion of OST to PST Conversion

Now you easily open your converted PST file in the MS Outlook application and can access the information.


In the above blog, we discussed two free methods for OST to PST File conversion. On one side, there is a manual method that has many faults and limitations. The manual method is time-consuming and is not capable to migrate the entire database store in the OST file. Even the process is too difficult for the beginners to carry out the conversion.

And if we put vision on the third-party SysInspire OST to PST converter is beneficial in all aspects. It can convert multiple OST files at a time. This Software can easily run by any non-skilled or skilled person to open OST file without Outlook.

About SysInspire

SysInspire Software always designed product to help clients relating to Email Conversion, Data Migration, Forensic Tool and many more..

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  • support[@]sysinspire [dot] com