Convert ost file to pst outlook

Easy method to convert multiple large OST files to PST without any change or losing data by downloading the most popular third-party tool of KDETools for OST to PST Converter tool. This securely export entire OST file data into Outlook PST file and various file types such as – Zimbra, Gmail, PST, EMLX, NSF, HTML, MSG, vCard, MBOX, vCal, PDF, EML and etc. file types and with cloud applications such as Office365, Live Exchange Server.

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Export mailbox as a PST file

Login to Outlook with the Exchange account that was used to create the OST files. And to export the OST mailboxes to PST, follow the simple procedure:

  1. Go to Files >Open & Export and click Import & Export.
  2. Select Export to a file; then click Next.
  3. Select the second option—Outlook Data File (.pst)—and click Next.
  4. Select the folder which you want to export and click Next.
  5. Browse the location where you want to save the new PST file and choose the options regarding the duplicate items.


Use ‘Archiving’ to save OST emails to PST

By enabling the Auto Archive method in Outlook, you will be able to save the items of the OST file in a separate PST file. This method helps you to keep the size of your mailbox manageable. When the size of the mailbox grows and there are multiple messages that are older and you do not require them to be in the mailbox, then you can put them in the archive folder easily. Follow the simple steps to enable auto archiving in Outlook.

  1. Launch the Outlook application, go to File, and click Options.
  2. Go to Advanced and click Auto Archive Settings.
  3. Now select the number of days in which you want to run auto-archiving. Select the folder to save the archived file; also, provide the archiving options, and finally click OK.
  4. With this, mailbox items from your OST file will be saved to the PST file as per your archiving settings.

You can also opt for office 365 to office 365 migration.


Every user wants an effective solution for conversion of OST files into PST format. I would like to suggest this highly advanced OST to PST Converter Software. This tool can recover corrupt OST files and convert OST file into many different formats - RTF, EML, MSG, HTML and PDF. It also can recover deleted files from corrupt OST files. It converts all mailbox folder items – emails, calendar, contacts, journals, notes, tasks, attachments, etc in required formats. Encrypted and large OST files can be easily converted by this amazing tool. It supports all versions of MS Outlook and Windows OS.
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Useful information for readers like me. Thanks for sharing this with us team