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Fix Error “Outlook OST file Cannot be Opened”

Summary: When the Outlook OST file cannot be opened in Outlook, the error is displayed  “Outlook OST file cannot be opened”, and the Outlook OST file does not open. When this error comes, Outlook doesn’t allow users to display their mailbox items such as emails, contacts, calendars, etc. In this blog, we have discussed an automated method to provide a solution to this problem.

Overview

Outlook is advanced software that provides features such as an easy user interface, easy messaging, and security. Sometimes, due to Outlook updates and reinstallation, it shows errors such as “Outlook OST file cannot be opened.” In this blog, we will discuss this error and provide an automated solution to this problem.

Read also

How to Convert OST Files to Zimbra Mail Client?

How to Convert OST to MBOX format?

Reasons for error message Outlook OST file cannot be opened

There are several reasons that can lead to the error message “Outlook OST file cannot be opened”

  • Damaged, corrupted or orphan OST file.
  • The problem of the OST files in synchronising with the Exchange server.
  • Corrupted or damaged OST file.
  • Outdated version of Outlook or Windows

Best solution for error message “Outlook OST file cannot be opened”.

The best solution for the error message “Outlook OST file cannot be opened” is to use professional software eSoftTools OST to PST converter software. The error message is displayed due to corruption in the OST file, faulty add-ins or missed Outlook update. In cases this error is displayed you can use the solution i.e., convert OST files to PST files. By using the software you can convert the OST file to a PST file and you can import the PST file in anyOutlook account. 

Key features:

  • Maintaining Data Formatting: It converts OST files to PST files while maintaining the data hierarchy and data formatting during conversion.
  • User-friendly Graphical interface: The easy-to-use graphical interface converts OST files to PST files smartly and quickly with few clicks.
  • Easy Preview: In the preview panel, you can view the files and folders of OST files after scanning and selecting the files/folders that you want to convert.
  • Split feature: This tool lets you split large OST files into smaller PST files for easier management. 
  • Email filtering: You can filter emails by selecting a specific date range and retrieve only the messages from that period.
  • Naming Convention: In the naming convention you can save emails with unique names based on Subject, Date and From.
  • File Formats:  You can convert OST files to other file formats such as MSG, MBOX, EML, EMLX, HTML, MHTML, etc.

 By following simple steps you can convert OST to PST easily.

  1. Download eSoftTools OST to PST Converter Software and install it.
  2. Launch the software into your computer and press the “Select OST” button
  3. Add OST files from local drives and load them in the OST Converter.
  4. In the side panel, you can preview imported OST files and folders.
  5. Select necessary mailbox folders from OST files for exporting them.
  6. Press the ‘Save OST’ button and select the ‘Export to PST’ radio button from the OST conversion options.
  7. If you want to split an OST file select the ‘Split PST’ option and choose a size from different size ranges.
  8. Browse the location where you want to save the PST file to your computer.
  9. Choose the ‘Mail Filter’ option if you want to filter email (based on date) and the Naming Convention feature.
  10. Click on the ‘Convert’ button and begin the process of OST to PST conversion process.
Conclusion

The Outlook OST file cannot be opened due to corruption, faulty add-ins and missed Outlook updates and display error message “Outlook OST file cannot be opened”. You can resolve this error by using advanced OST to PST converter software such as eSoftTools OST to PST converter software. This software can easily convert corrupted and inaccessible OST files to PST files and you can import PST files in any Outlook account.


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