How to Fix Error- “OST is not an Outlook Data file”

Last updated on January 15th, 2024 at 04:52 pm

MS Outlook is the most used software by the corporate and businesses alike. Thanks to this application, sending and receiving emails have become more reliable. It permits users to work on it even in an offline mode or when the connectivity is lost due to server errors. When the connection is restored between the server and Outlook, it automatically updates the emails and other Exchange user data. However, despite multiple benefits sometimes the users might get stuck and get an error message while accessing Outlook. The error message displayed it.

“OST is not an Outlook Data File.”

The article talks about how the user can fix the error and what is the perfect solution for it.

Best Method to Repair All Outlook Errors

eSoftTools Convert OST to PST Software to smartly repair “OST is not an Outlook Data File” and all other Outlook errors by just applying simple steps. Download this software to get instant results.

What is the reason behind the error?

The major reason why the Outlook application displays this error is that Outlook is not able to sync the ost file with the server.  There is an error in the front-end file and not on the Outlook data file. Due to enhanced security measures, the software doesn’t let the users open the OST file. Some of the reasons why Microsoft application displays errors are listed below

  • OST file might have become corrupt
  • There might be a synchronization issue between Outlook and Exchange application
  • Due to sudden power rage
  • Improper closing of Microsoft Outlook

Resolve Error “OST is not an Outlook Data File” using Manual Method

  • Visit the control panel and press the mail button.
  • In the mail-setup box, you have to press the Show Profiles button
  • Now, press properties and then email and exchange.
  • Press exchange mode go to settings>> advanced and press the offline folder file.
  • Click on the Next button and press yes
  • Visit cached exchange mode settings and then press the checkbox ” “Use Cached Exchange Mode and then press OK.
  • Finally, press the finish button and close the application.

Limitation of manual method

The manual method may help the users to resolve the OST errors but it can be done by a technical person and there are chances that it may create hassle later. To fix all these issues, it is better to take the help of any reliable third-party software.

The Best solution to fix all Outlook errors

eSoftTools OST to PST Converter Software can assist you. The software can easily export Outlook data files in PST mode within a blink of an eye. After this, the user can again import PST files into Outlook with its inbuilt feature of Import/ Export. Here are certain key features of the product

  • The application is simple to use and highly effective in doing OST file recovery & conversion
  • It automatically searches OST files for conversion and deeply scans the OST files to repair all its corruption problems.
  • Shows live preview of all OST file inner elements like- email, calendar, and journals.
  • Offers to make Recovery of OST, PST, and NST files of Outlook.
  • Allows users to transfer OST items to Office 365, Gmail, YahooMail
  • Has a friendly user interface, that helps users to perform the conversion without using any advanced technical skills.

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Working Video of OST to PST Software:-

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