June 15, 2024

How do I fix the Outlook OST is it not an Outlook data file? PST error?

OST File

If you are worried about the approach to fix the Outlook OST is not an Outlook data file PST error? Then, here we will explain the reliable approach to fix the Outlook OST is not an Outlook data file PST error to convert OST to PST.

Microsoft Outlook is the most famous email platform and it’s especially used for corporate environments and personal purposes. It allows users to send and receive emails for communication requirements. 

OST is known for its offline storage table as it allows users to access their mailbox data offline. It stores duplicate copies of Outlook mailbox data such as email messages, contacts, tasks, calendars, and all other mailbox data.

If you are aware of the explanation about Microsoft then you already know that you can’t relink or access damaged OST files. But you can transfer it into a PST file to easily access any version of the Outlook account.

Reason to Resolve the Outlook OST is not an Outlook data file PST error

  • The OST file might be corrupted due to improper shutdowns, system crashes, or malware infections.
  • OST file might have been created with a different version of Outlook or an Exchange account that is no longer available.
  • Problems with the Outlook profile can cause the application to fail to recognize the OST file.

How to Fix the Outlook OST is not an Outlook data file PST Error Manually?

If you are the owner of the Outlook account then you can follow the inbuilt Outlook solution by using import/export features as we have shared below:

  • First, launch the Microsoft Outlook application and then click on the file option.
  • Now, press on open and export, and next press on import/export.
  • Hit on the Export to a file and click the next button to continue.
  • Then, select Outlook PST file and press the next button to continue.
  • Browse Outlook mailbox data as you want to download.
  • Finally, set the path and press finish to get output quickly.

Restrictions of Manual Approach

  • It will need lots of hours and much effort to perform this approach.
  • Users must be aware of the technical information about Outlook.
  • You can’t restore and convert damaged, corrupted, inaccessible, and overly large OST files.

How to Resolve the Outlook OST is not an Outlook data file PST Error Via Expert Suggested Approach?

When OST files get damaged due to any server failure then we recommend you to opt for SysTools OST Converter as it allows you to convert single or batch OST files in one shot without losing any single information. This software has been developed with an advanced algorithm to get accurate results without affecting any hierarchy.

  • Download the software and launch it on your machine.
  • Browse the OST file and insert it into the application.
  • Now, Hit on the PST file in the multiple options of export type.
  • Finally, provide a path and click export to get the result quickly.

Benefits of Expert Suggested Approach

  • Its save attributes remain the same as before the conversion. 
  • This wizard is very easy to perform by all types of beginner and advanced levels of users.
  • You can also restore and convert damaged, corrupted, and inaccessible OST files.
  • With this wizard, you can easily import OST to Outlook with this application.
  • This software is workable with both Mac and Windows operating systems without depending on any other application.

Let’s Wrap Up

In this guide, we have explained the way to fix the Outlook OST is not an Outlook data file as required. We have also shared the basic overview and reason behind this question. In addition, we have also shared the manual and expert-verified approach to complete the process. Manual approaches have lots of limitations. So, we suggest you opt for a professional approach to complete the process without losing any information.