Computers and Technology

Best Way to Convert OST to PST File?

Summary: In this blog, we will discuss some best ways to convert OST to PST file without any data loss. If you are among those who want to export emails from OST file to PST format then this blog is for you. Read the complete article and perform the conversion process with ease.

Note: If you want an error-free and secure OST to PST conversion, then you can use the OST to PST Converter software. The automated tool will instantly export PST email to PST format in a few simple steps.

OST & PST – Overview

OST (Offline Storage Table) and PST (Personal Storage Table) are file formats used by Microsoft Outlook to store email, contacts, calendars, and other mailbox data. Here’s a brief overview of each file format:

Tip: For instant and secure OST to PST conversion, you can use the professional OST Converter software on your system. The automated tool will be easy to convert orphan, corrupted, damaged or encrypted OST file without any hassle.

OST (Offline Storage Table):

    • Function: An OST file is a local copy of mailbox data that allows users to access their emails, contacts, calendars, and other items even when they are not connected to the Exchange Server.
    • Synchronization: When Outlook is connected to an Exchange Server, it synchronizes the OST file with the server, updating any changes made in the mailbox. This allows users to work with their mailbox data even in offline mode and have the changes synchronized when they reconnect to the server.
    • Location: OST files are stored on the user’s computer and are typically located in a specific folder associated with the Outlook profile.
    • Security: OST files are encrypted and tied to a specific Outlook profile, making them inaccessible outside of the associated profile.

PST (Personal Storage Table):

    • Function: A PST file is a data storage file use to store mailbox data, including emails, contacts, calendars, tasks, notes, and other items. It is primarily use for POP3, IMAP, and web-based email accounts in Outlook.
    • Independence: PST files are independent of any mail server or network connectivity. Users can store PST files locally on their computers or on network drives, allowing them to access their mailbox data regardless of the server’s availability.
    • Location: PST files are typically save on the user’s computer or a designated network location. They can be create for different purposes, such as archiving old emails, backing up mailbox data, or organizing data in separate folders.
    • Portability: PST files can be easily moved or imported into different Outlook profiles or even different instances of Outlook, enabling users to migrate their mailbox data across systems or share data with others.

It’s important to note that while OST files are associated with Exchange accounts and primarily use in conjunction with the Exchange Server, PST files are more versatile and can be used with various types of email accounts. PST files provide users with greater control over their mailbox data, allowing for backups, archiving, and easy migration across different Outlook installations.

Both OST and PST files have specific purposes and usage scenarios within Microsoft Outlook, and understanding their differences can help users manage their mailbox data effectively.

Why Need to Convert OST to PST Format?

There are several reasons why you may need to convert OST (Offline Storage Table) to PST (Personal Storage Table) format in Microsoft Outlook. Here are some common scenarios:

Data Recovery:

If your Exchange mailbox becomes inaccessible or gets corrupted, converting OST to PST can help you recover your mailbox data. Since OST files are synchronized with the Exchange Server, converting them to PST format allows you to extract and access your emails, contacts, calendars, and other items.

Migration to a New System:

When migrating to a new computer or a different email system, converting OST to PST enables you to transfer your mailbox data. You can then import the PST file into the new Outlook installation or a different email client, ensuring a seamless transition and continuity of your email data.

Moving from Exchange to Another Email Platform:

If you’re moving from an Exchange environment to a different email platform that does not support OST files, converting them to PST format is necessary. This allows you to retain your mailbox data and import it into the new email platform.

Backup and Archiving:

Converting OST to PST provides a convenient way to create backups or archives of your mailbox data. PST files can be store locally or on different storage devices, providing an additional copy of your emails, contacts, and other items for future reference or in case of data loss.

Accessing OST Data without Exchange Connectivity:

In some cases, you may need to access your OST data when you don’t have access to the Exchange Server or when you’re working in offline mode. By converting OST to PST, you can open and view your mailbox data without relying on server connectivity.

Compliance and Legal Requirements:

Organizations may have legal or compliance obligations to retain and produce email data for auditing or legal proceedings. Converting OST to PST allows for easier management and retrieval of specific email data required for such purposes.

It’s important to note that converting OST to PST should be done cautiously, as it involves working with sensitive data. It’s recommend to use reliable and reputable conversion tools or seek assistance from IT professionals to ensure the integrity and security of your mailbox data throughout the conversion process.

How to Convert OST to PST Manually?

Converting OST (Offline Storage Table) to PST (Personal Storage Table) format manually can be a complex and technical process. However, if you have access to the original Outlook profile and the Exchange Server, you can use the built-in Import/Export feature in Outlook to perform the conversion. Here’s a general overview of the manual process:

Note: Before proceeding with the manual conversion, it’s crucial to back up your OST file to ensure the safety of your data.

  1. Open Microsoft Outlook: Ensure that you have the Outlook application installed and open it on your computer.
  2. Create a New PST File: In Outlook, go to File >> Export a File >> Outlook Data File. Choose the email folders you wnat to export and browse the saving location. At last click on the Finish button.
  3. Import OST Data to the New PST File: IFile >> Options >> Advanced and click on the Next button. Then, choose Import/Export wizard >> Import from another program or file >> Outlook Data File (.pst). Browse and select the newly created PST file. Choose the folders you want to import from the OST file and select the desired options. Click “Finish” to start the import process.
  4. Wait for the Conversion: The conversion process may take some time, depending on the size of the OST file and the amount of data being converted. Once the conversion is complete, you should see the imported folders and items in the new PST file.

Limitation Wth Manual Approach

It’s important to note that manual conversion has certain limitations and may not be suitable for all scenarios. It requires having the original Outlook profile connect to the Exchange Server, and it may not be able to recover all data in case of severe OST file corruption. Additionally, manual conversion may not preserve certain elements, such as complex email properties or folder structures, as effectively as automated tools.

If you encounter any issues or have a large or severely damage OST file, it’s recommend to use specialized third-party software or consult with IT professionals who can provide assistance in the conversion process. Automated tools offer more advanced features, better data integrity, and the ability to handle complex scenarios more effectively.

Why it is not recommend to convert OST to PST Manually?

Manual OST to PST conversion can have several limitations, including:

Technical Expertise:

Converting OST files to PST manually requires technical knowledge and expertise in handling email data files. It may involve complex procedures and various steps that can be challenging for non-technical users.


Manual conversion can be a time-consuming process, especially if you have a large OST file or multiple OST files to convert. You need to perform multiple steps like exporting, importing, and configuring email clients, which can be tedious and lengthy.

Risk of Data Loss:

Manual conversion involves a certain level of risk, and if not executed correctly, it can lead to data loss or corruption of the original OST file. Mishandling or improper conversion techniques may result in permanent damage to the data.

Limited Compatibility:

Manual OST to PST conversion is often limite to specific versions of email clients or operating systems. Compatibility issues may arise if you try to import the PST file into a different email client or a newer version that does not support the converted file format.

Incomplete Conversion:

There is a possibility of incomplete or partial conversion when performing the process manually. Some elements, such as attachments, metadata, or certain email properties, may not be convert accurately or may be lost during the conversion process.

Lack of Advanced Features:

Manual conversion methods may lack advanced features available in specialized software tools. These tools often offer additional options like selective conversion, batch processing, or advanced filtering, which are not readily available in manual techniques.

To overcome these limitations, using specialized OST to PST conversion software can provide a more efficient and reliable solution. Such tools are designe to handle the conversion process smoothly, ensuring data integrity and preserving all email attributes without the need for extensive technical knowledge.

How to Convert OST to PST Instantly?

Use Xtraxtor OST to PST Converter software and export email from OST file to PST format along with attachments. Using this tool, one can convert corrupted, orphan, or damaged OST file into PST format in a few simple steps. For that, follow the given instructions –

Step 1. Launch Xtraxtor software on your Windows OS system.

Step 2. Add an OST file to your system.

Step 3. Click on Export and choose PST file.

Step 4. Browse the location on your system and hit on the Add button.

Done! Here you convert OST to PST along with attachments in a few simple clicks without any data loss.

Why Automated Tool is Recommende for Conversion?

Using an automated tool for OST to PST conversion offers several advantages over manual methods. Here are some reasons why you might consider using an automated tool:

Ease of Use:

Automated tools are designe with user-friendly interfaces, making them accessible even to non-technical users. They typically provide step-by-step instructions and intuitive features, simplifying the conversion process.

Time Efficiency:

Automated tools can save you significant time compared to manual methods. They can handle large OST files and complex conversion tasks much faster, reducing the overall conversion time and effort required.

Data Integrity:

Automated tools are specifically develope to ensure data integrity during the conversion process. They employ advanced algorithms and techniques to accurately convert emails, attachments, calendars, contacts, and other mailbox items from OST to PST format, preserving the original formatting, properties, and folder structure.

Handling of Corrupted OST Files:

If your OST file is damage, an automated tool can often handle the recovery and conversion process effectively. These tools have built-in mechanisms to repair and recover data from corrupted OST files, ensuring that you can retrieve as much data as possible.

Batch Conversion:

Automated tools often support batch conversion, allowing you to convert multiple OST files to PST simultaneously. This is particularly useful when you need to convert OST files in bulk or when dealing with multiple user accounts.

Selective Conversion:

Many automated tools provide options for selective conversion, allowing you to choose specific folders or items from the OST file to convert. This flexibility enables you to extract only the necessary data and exclude unwanted items, saving storage space and streamlining the conversion process.

Compatibility and Support:

Automated tools are develope to be compatible with various versions of Microsoft Outlook and Windows operating systems. They receive regular updates and technical support, ensuring that you can rely on them for accurate and reliable OST to PST conversion.

While manual methods may be suitable for simple scenarios. Where as automated tools offer enhanced efficiency, data integrity, etc, especially when it is large OST files. They provide a more reliable and comprehensive solution for OST to PST conversion, ensuring a smooth transition and preservation of your mailbox data.


Here in this article, we learn the two workable solutions to convert OST to PST. You can either manually, perform the conversion process and faces some limitations. On the other \hand, you can either use an automated tool and convey OST to PST without Outlook installation and perform the process. Now you cna decide which new solution you like to use for the conversion.

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