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How to convert OST files to PST

How to convert OST files to PST

Users of Microsoft email services are well aware of 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 mails will be available to the user to work offline in Outlook .

The conversion is necessary in case of loss of the password of the mail services IMAP ( Gmail, Outlook, HotMai l, etc.), during a virus infection, loss of Windows domain rights or in case of file corruption OST . Also, it is a cost saving measure that allows you to restore mails after they are deleted from the server. The conversion will allow you to access the information stored in the files.

There is only one problem. The mentioned Microsoft products do not support converting OST files to PST , this requires using third-party resources. There are only two options:

Online service from OST to PST

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

  1. Click on the selected file on the disk.
  2. Enter your email address.
  3. Click the “Next” button.
  4. Make the payment.
  5. Download the finished PST file to your storage drive.

OST to PST service

The service supports working with various types of devices and all popular operating systems. The only thing to note is that this resource does not work with OST files larger than 4 GB in size.

Offline OST to PST File Converter

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

Advantages of offline OST to PST file conversion application:

  • Internet connection not required
  • Capable of recovering deleted objects
  • Supports working with various formats ( TXT/PST/EML ) for data export
  • Convert even damaged OST files
  • Allows you to select folders to export files to


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

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