OST (Offline Storage Table) files are created by Microsoft Outlook to store a local copy of mailbox data for accounts configured with Exchange, IMAP, or Office 365. These files enable users to access their emails, calendars, and other data even when offline, and they automatically sync with the server once an internet connection is available. However, OST files are closely tied to the specific Outlook profile and system on which they were created. As a result, accessing an OST file on a different computer becomes difficult—especially if the original Outlook profile or server connection is no longer available.
There are various situations where you may need to remotely access an OST file on another computer—including recovering mailbox data from a crashed system, assisting remote employees, or retrieving old email archives. Since Outlook doesn’t allow direct opening of an OST file on a different system, are essential for secure and efficient access.
Challenges in Accessing OST Files Remotely
- Each OST file is encrypted and uniquely linked to the Outlook profile and system where it was created. You cannot open it on another computer without converting it first or restoring it in the original environment. This is a key limitation when attempting remote access.
- Even if you physically move the OST file to another PC, Outlook will not recognize it unless it’s connected to the same Exchange account. Attempting to open it without proper configuration typically results in error messages or blocked access.
- Copying or sharing OST files over a network or via cloud platforms may lead to data corruption or synchronization issues. Furthermore, unauthorized access to these files can pose security and compliance risks, especially in enterprise environments.
How to Access OST Files on Another Computer using Outlook native Import/Export feature?
If you have configured Outlook profile with OST file then you can use Outlook native import/export feature as we have explained below:
- Open Outlook and click on the file.
- Click on open and press on Import/export.
- Select Export file and tap Next.
- Choose Outlook data file and press Next,
- Browse the OST mailbox folder.
- Choose a destination and press the finish.
Shortcomings of Manual Method
- Outlook installation and configured profile is necessary to handle this approach.
- You cannot restore and convert damaged, corrupted and inaccessible OST files.
- The export process may take a significant amount of time depending on the size of your mailbox data. Larger OST files with extensive emails, attachments, or calendar entries will require more time to complete the export.
How to Access OST Files on Another Computer via Professional Technique?
If OST becomes orphaned then we suggest you to opt BitRecover OST to PST Converter as this software can convert individual or batch OST files at once. This software is specially known for maintaining results and becoming a trusted utility by millions of users.
- Install the automated application on your system.
- Click Convert Configured Mailbox Data to select the OST file.
- Choose the desired OST folders for conversion.
- Under the output options, select PST as your preferred file format.
- Set the destination folder where the resulting PST file should be saved.
- Begin the conversion by clicking the Finish button.
Advantages of Automated Approach
- This software supports convert OST to PDF, PST, EML, MBOX, MSG, and 37+ other saving formats.
- It features a simple and intuitive interface, making it easy to use for both professionals and individual users.
- Additionally, it allows you to restore and convert damaged, corrupted, or inaccessible OST files.
- The built-in filter options let you refine the export by year, date range, subject, sender, recipients, as well as options to exclude specific folders or skip empty ones.
- The tool also supports direct import OST to Microsoft 365, Thunderbird, Gmail, and all IMAP-supported servers, offering a versatile and efficient solution for OST file conversion and recovery.
Conclusion
Let’s sum all discussed information we shared to remotely access an OST file on another computer by manually and automated approach. As a manual approach comes with lots of challenges and major risk of data loss. So, we recommend you to choose an automated approach as it offers fully maintained results and no risk of losing any crucial information.