How to convert OST files to PST

Outlook 2016
Users of Microsoft email services are well acquainted with the OST format, which is used to store data in encrypted form. Converting OST files allows you to get rid of format restrictions, after which mailings will become available to the user for offline work in Outlook.
Converting OST file to PST

Conversion is needed in case of loss of the password from the mail service, during virus infection, or in case of damage to OST files. In addition, it is a saving measure that allows you to restore mailings after they are deleted from the server. Conversion will allow you to access the information stored in the files.

There is only one problem. The mentioned Microsoft products do not allow converting OST files to PST; for this, you need to use third-party resources. Fortunately, there are two easy to use options:

  • Offline OST to PST file converter app
  • Popular online OST to PST conversion service

Online OST to PST Service

The Online OST to PST Service allows you to convert OST files uploaded to the site into the PST format. The service is quite simple, and its operation does not depend on the performance of your PC since the conversion takes place on a remote server. With it, you can instantly convert files, just follow six simple steps:

   1.   Click on the selected file on the disk.
   2.   Enter your email address.
   3.   Enter verification code.
   4.   Click the "Next" button.
   5.   Make payment.
   6.   Download the finished PST file to your hard disk.

Online OST to PST service

The service works with various types of devices and all popular operating systems. The only thing to consider is that this method does not work for OST files that are larger than 4GB in size.

Offline OST to PST file converter

The Offline OST to PST file converter app is used to convert data to the common .PST format. System requirements are quite simple, but the utility requires MS Outlook Windows installed, other versions of Outlook (Outlook Office365, Outlook for Mac) are not suitable for it.

Offline OST to PST file converter
  • No internet connection required
  • Able to recover deleted objects
  • Supports work with several formats (TXT / PST / EML) for data export
  • Converts even damaged OST files
  • Allows you to select folders for exporting files
Converting OST file to PST

The way to convert OST -> PST is up to you to choose. Both options are quite simple. To use them, you do not need to learn programming languages or purchase expensive software. An online service is much more convenient. But if you convert OST files regularly or if their size exceeds 4GB, it is better to install Offline OST to PST file converter.

If you have any questions or suggestions, please feel free to ask OfficeToolTips team.

See Also

How to repair Outlook PST file

How to repair Outlook PST file

If your data files in Outlook won't open, or items appear to be missing in your inbox, then your PST file is probably corrupted. However, there is a way to recover your emails, contacts, calendars, notes, etc.
Stellar Converter for OST - Product Review

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Microsoft Windows OS remains the most used desktop OS by a mile with over 70% of the share market. With such a high amount of users, it is not surprising that the OS’s free personal email service – MS Outlook – is used by hundreds of millions of people, a majority of these being business organizations and companies.
Adding Data files

Adding Data files

Although Outlook automatically creates Data Files as needed when you add accounts, you might want to add your own Data Files (.pst - files) to a profile. For example, perhaps you use an Exchange Server account for your primary Outlook store, but want a set of personal folders to serve as an archive; or perhaps you have an Exchange Server account and are adding a POP3 account.