How to Import OST File in Outlook 2019?


You’re looking for a way to import an OST file into Outlook. You wish to open an OST file in Outlook. This article will lead you to a simple and reliable solution.

We will not discuss the circumstances and reasoning in this article. Why do you need to import an OST file into Outlook? Let’s go right to work on a solution.

OST (Offline Outlook Data File) files cannot be opened in any Outlook profile or account directly. When you add an account, it will be generated immediately. Alternatively, you may regenerate the OST file as required. To open an OST (offline Outlook Data File) in Outlook 2019, 2016, or earlier versions, the OST file must be converted to a PST data file. The OST mailbox data may be exported to PST using the Outlook Import/Export wizard (assuming an associated account is accessible) or by utilizing an OST to PST converter software utility. You may also use the program to convert orphaned and unavailable OST files. You may also directly export OST mailbox contents to an existing Outlook profile, Live Exchange Server, or Office 365 utilizing the software-based technique.

How to Import and Open an OST File in Outlook?

You almost certainly do not have access to your IMAP Outlook account. In this instance, you must do two easy actions.

Converting an OST file to a PST file enables the user to relocate data from one location to another. This allows users to transfer the acquired data to another system. It is possible that the MS Exchange server could fail or that a malicious attack will occur. In such cases, the transformed file guarantees data backup and protection.

Step 1: Export Your OST File to an Outlook-Compatible PST Format.

Step 2: Import the Exported File from Step 1 into Microsoft Outlook.

Method 1: Move OST file to PST

To open an old OST file in any version of Outlook, use theĀ BitRecover OST to PST Converter Software. If you have an orphaned OST file, you may also use this program to import and open OST files in Outlook. It is possible to relocate damaged OST files.

Furthermore, this program ensures the data’s integrity. This program guarantees that you will not lose any data from it. This is compatible with all versions of Windows. There are demo versions available if you are interested and ready to try them.

Step to Import OST files in Outlook 2019

  1. Download and run the software on your PC.
  2. The software can automatically load OST files from the default storage location. If manually adding offline files is possible by choosing the flies or folders option.
  3. Select the OST folder that will appear on the software panel.
  4. The tool provides you with multiple saving options, choose the PST option from the drop-down.
  5. The application provides a separate option for breaking the resulting PST file into 2 GB, 5 GB, 10 GB, and so on sections.
  6. You can change the result from the PST files language.
  7. Live conversion is on the Software panel.
  8. Now it is showing a message of completion, then press the OK tab.
  9. After completing the all steps, it will automatically open the destination location.

Now, you have the PST file which you import in Outlook 2019, 2016, 2013, and so on.

Method 2: Import the Exported File from Step 1 into Outlook.

Take the actions outlined below. Outlook must be installed on your PC to perform this step. The import procedure may change depending on the version of Outlook (2007, 2003, or 2002).

I’ll go through the processes for Outlook 2019, 2016, 2013, and 2010. Simply follow the steps and open the OST file in Outlook.

  1. Open Microsoft Outlook on your PC. From the menu bar, choose the File tab.
  2. Navigate to ‘File>Open & Export>Import/Export’ in Outlook.
  3. Select ‘Export to a file from the drop-down menu and click ‘Next.’
  4. Select ‘Outlook Data File (.pst)’ from the drop-down menu and press the ‘Next button.
  5. To export messages, pick the mail account or specific mailboxes such as ‘Inbox’ or ‘Sent Items’ (select one item at a time)
  6. Check the ‘Include subfolders’ option and then click ‘Next.’
  7. Then, pick a save place on your PC or external media by clicking ‘Browse.’
  8. Click the ‘Finish’ button.
  9. You may secure the exported PST file against illegal import by entering a password. This is an optional step. You have the option of clicking ‘OK’ without entering the password.
  10. This starts the process of exporting OST mailbox items to a PST Data File.

NOTE: To begin exporting the PST file, you may need to enter the password again and then click ‘OK’ (check screenshot).

After exporting the PST file, proceed with the procedures to open it in various Outlook versions. And you need to view PST file with perfect solution.

Drawbacks of manual method

  1. Manual approaches are ineffective for recovering Exchange mailboxes from OST files. When Exchange fails, such OST files become the only source of data.
  1. There are no manual methods available for converting such OST files to PST format. You must use the same Exchange account – an OST file cannot be accessed using a different Exchange account.
  2. They are unable to assist in the conversion of corrupt OST files. Outlook email users are unable to access corrupted OST files. In such cases, manual OST to PST conversion becomes almost impossible.
  3. Technical competence is required to carry out the manual procedure. Third-party software may be utilized to overcome the limitations and obstacles associated with uploading an OST file to Outlook.


Every day, the world changes, and with it, technological progress occurs. After assuming the circumstance, I concluded that the user has an issue while manually opening an old OST file in Outlook 2019 / 2016 / 2013 / 2010. Converting a single file at a time is a waste of time.

As a result, rather than performing a manual operation, it is preferable to employ the software. It is not only a waste of time, but it also has the potential to corrupt your file or causes you to lose vital data when importing OST to Outlook.

As a result, you should test the program to open an old OST file in Outlook 2019, 2016, 2013, 2010, 2007, and so on.

Also Read: Why Should I Learn Android App Development?



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