A DIY Way of Converting OST to PST Format


Microsoft Outlook is a widely preferred email client for both personal and professional purposes. There are two primary file formats Outlook employs, known as OST (Outlook Offline Storage Table) and PST (Personal Storage Table). OST is often used together with Exchange Server, while the PST functions as a self-contained data repository. They allow the storage of various types of information, like emails, contacts, calendars, and so on.

Sometimes, you might have to convert your files to a different format. These can be data migrations or the need to create backups. You can check here to find out how to convert OST to PST, and we will also provide step-by-step guidance to empower you to effectively manage your Outlook data.

In case you need to recover your emails, check https://developer.salesforce.com/forums/?id=9060G000000Xa8RQAS where you can find a useful tool to save your data.

Why Convert .OST to .PST?

Prior to delving into the conversion process, it’s crucial to comprehend the reasons to convert .OST to .PST. There are several common scenarios where this conversion can be helpful:

  • Data Backup: PST files are easier to back up and archive, ensuring your critical emails and data are safe from unexpected data loss.
  • Data Migration: If you switch email clients or move to a new computer, trying to export OST to PST format allows you to transfer your Outlook data seamlessly.
  • Email Recovery: In case of OST file corruption, you can recover your data by converting it to PST format and importing it back into Outlook.
  • Legal Compliance: Some organizations may need to convert files to meet legal or regulatory requirements for data retention and retrieval.

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The DIY Conversion Process

Having recognized the significance of converting files to a different format, let’s explore the step-by-step process of how to convert OST to PST.

Step 1: Locate and Back Up Your OST File

Before starting the conversion, locating your OST file and creating a backup are essential. The OST file is typically stored on your local computer, but its location may vary depending on your Outlook version. To find it:

  • Close Outlook if it’s open.
  • Press Windows + R to open the Run dialog.
  • Enter the following command and press Enter: %localappdata%\Microsoft\Outlook

You should be able to locate your OST file within the Outlook folder now. Please ensure you have a backup copy of this file and store it in a safe location.

Step 2: Use Outlook’s Import/Export Wizard

Microsoft Outlook provides an Import/Export wizard, which is a built-in OST to PST converter software. Here’s how to use it:

  • Open Outlook.
  • Click on “File” in the top-left corner.
  • Choose “Open & Export” and then “Import/Export.”
  • Within the Import and Export Wizard dialog box, opt for “Export to a file” and then proceed by clicking “Next.”
  • Subsequently, select “Outlook Data File (.pst)” and advance by clicking “Next.”
  • Select the folder you want to export (e.g., Inbox, Sent Items), or choose your entire mailbox.
  • Click “Next” and specify the location where you want to save the file. You also have the option to configure settings for managing duplicate items.
  • Click “Finish” and enter a password if you wish to secure the PST file with one.

That is how you can convert OST to PST with Outlook.

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Step 3: Consider Third-Party Tools

There are several third-party OST to PST conversion software programs available. These software solutions for “Outlook convert OST to PST” provide a user-friendly interface along with advanced features, enhancing the speed and efficiency of the conversion process.

When deciding on third-party OST to PST conversion software, take into account the following factors:

  • Ease of Use: Look for a tool with a simple and intuitive interface.
  • Data Integrity: Ensure data integrity is maintained during email conversion.
  • Speed: Check the tool’s performance and conversion speed, especially for large OST files.
  • Compatibility: Make sure the tool is compatible with your Outlook version.

One of the most popular third-party OST to PST converter software tools is CoolUtils OST to PST Converter.

Step 4: Import the PST File

Knowing how to convert OST to PST, you can now proceed to import the designated file back into Outlook.

  • Open Outlook.
  • Click on “File” in the top-left corner.
  • Choose “Open & Export” and then “Import/Export.”
  • In the Import and Export Wizard dialog box, pick “Import from another program or file” and then click “Next.”
  • Afterward, select “Outlook Data File (.pst)” and click “Next.”
  • Browse to the PST file location you want to import and select it.
  • Select the folder to import data or the entire file.
  • Click “Next” and choose how you want to handle duplicates.
  • Click “Finish” to start the import process.

Your OST data is now back in Outlook in the form of a PST file.