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Microsoft Outlook program stores all the Exchange mailbox data in an offline mode (cached exchange) in the local OST (Offline Storage Table) file. Users can easily work on their OST files in an offline mode as well, and the changes will get updated once the internet connectivity re-established. But many users want to convert OST to PST file format because of various reasons. The conversion of OST to PST has not remained much challenging today. In this article, we will discuss only the recommended and trusted solutions. Here, we will discuss both manual as well as the use of professional OST to PST converter online.

Before moving further, we need to understand what are the reasons to migrate all the important OST mailbox data to PST file format.


Reasons to Export OST to PST File Format

Many users are facing issues in migrating their important OST files to PST because of different reasons. We have mentioned some of the most common reasons below - 

  • Accidentally deleting the Exchange Server account.

  • The exchange server faces crashing or failure.

  • To Backup Exchange mailboxes.

  • Exchange server maintenance.

  • Switching from one email client to the other.

    These are some of the common reasons to convert OST to PST file format. Now, let’s move further to the manual methods that you can perform for the conversion.


Manual Methods to Convert OST to PST


Method 1: Import/Export Method

  1. Launch Microsoft Outlook application.
  2. Go to the File tab.
  3. Select the Import/Export option.
  4. Click on Export to a file.
  5. Hit the Next button.
  6. Now select Personal file folder (.pst)
  7. Click on the Next button.
  8. Click on the parent root and click on the check “Include Subfolders”.
  9. Click on browse to define the path to save the resultant file.
  10. Then, click on the Finish button to end the process.


Method 2: Drag and Drop

Users need to create a new PST file and then move the selected OST mailbox data to the PST folder and save it.

  1. Launch Microsoft Outlook
  2. Create a new PST folder in the Outlook profile
  3. Now, select all the mailbox data that you want to transfer and then simply drop them to the PST file that you have created.


Method 3: Use of Outlook Archive Feature

  1. Launch Microsoft Outlook application.
  2. Go to the File tab.
  3. Click on the Options
  4. Now, Go to the advanced section
  5. Click on Auto Archive settings…
  6. You can now select the number of days for which you are wanting to run the auto-archiving. 
  7. Browse to define the location to save the archived file.
  8. Click on the OK button.

As per the archiving settings, the mailbox data from the OST file will get saved to the PST file.

Above, we have discussed the step by step manual process to perform the conversion. However, with these manual methods, there are several limitations such as the process is more time-consuming and there is a continuous risk of data loss. So to avoid such limitations, users can also use the automated best OST to PST Converter solution.


Third-Party Solution to Convert OST to PST File Format 

As we have seen there are several limitations using the manual technique to export multiple OST files to PST. Users can use the third-party solution which provides a quick and effortless solution. Use the best and the most reliable OST to PST converter tool available in the market. The solution is designed on advanced algorithms and there is no limitation with the file size. The third-party solution provides several amazing features that simplify the conversion. Also, there are free demo versions for a free evaluation of the performance.


Final Words

In this article, we have discussed how users can easily convert OST to PST file format. We have provided both manual as well as the use of the third-party OST to PST converter tool. We can conclude that there are several limitations with the manual method. And the third-party solution is more convenient and safe to perform the conversion in time.