Safest Solution to Convert OST to Outlook PST File Format

Do you also want to convert OST files into PST format to access your offline OST data in Outlook? Now, there is no need to worry because there is a complete solution here that allows you to change OST to PST format and import OST to Outlook 2019, 2016, 2013, 2010, 2007, or any other version of Outlook. In this post, you will get a descriptive answer for converting OST data to PST format. Now let us know about perspectives and their file formats, i.e., OST and PST files.

What is Outlook and what is the format of the file?

If you already know about prospects, then that’s good, and you can move on to the next step. But if you are a new user and do not know about the Outlook file format and its functions, you have nothing to worry about. This is a custom-made section for you to learn about OST and PST files and how they relate to Outlook.

As we know, Outlook is the most popular email application and is widely used to perform email tasks and securely manage email data. OST and PST are two different file formats that are associated with Outlook. An OST file is a separate file that contains all of the appearance data. The OST file is commonly known as the offline Outlook data file, which allows users to work offline. When the Internet is connected, all data will be synchronized with the server.

On the other hand, PST is also associated with Microsoft Outlook and is commonly known as the Personal Storage Table. It consists of the entire Outlook database to store Outlook emails and other data items. The PST consists of complete Outlook data such as emails as well as attachments, contacts, calendar entries, tasks, to-do lists, etc.

What is the purpose of making a PST from an OST file?

However, when accessing Outlook, there are many cases where the OST file becomes unavailable in Outlook. Because of this, users cannot access their data in Outlook. When the OST file is not available in Outlook, there is no way to access it again. In this case, you need to convert the unavailable OST files to PST format. Some of the cases are discussed below, which is why users want to switch from OST to PST format.

The Best Way to Convert OST to PST Format

Now the user is wondering if my OST file is not working in Outlook and how my email data can be accessed again in Outlook. If you also have this question, then you need to choose one of the most effective OST to PST converters offered by MailsDaddy, which safely exports all offline or inaccessible OST file data into PST file format. The tool has been developed using advanced algorithms that successfully export all Outlook OST file content into PST format.

Features of the OST to PST Converter

  • It is easy to download, install, activate, and convert OST files.
  • Provides a simple user interface so a newbie user can quickly convert OST to PST.
  • Enables swift scanning and file damages and inaccessible OST file bugs.
  • Allows you to import and migrate OST files in bulk mode.
  • Users don’t need to use MS Outlook, Exchange Server, or any other tool to follow the conversion process.
  • Shifts OST to PST, MSG, EML, RTF, MBOX, Office 365, Live Exchange Server, and others.
  • Demonstrate the preview of overall OST file data content in the smart preview section.
  • Compatible to save OST file contact into CSV/VSF and calendar details in ICs format.
  • It helps to convert all email contacts, calendars, notes, tasks, attachments, etc.
  • Offers to select a single email and export it into EML, MSG, RTF, and Html formats.
  • Keep maintaining the original folder and sub-folder hierarchy, text formatting, and email properties.
  • Quickly filter and convert some important OST file emails into PST format.
  • Perfectly moves multiple OST files into single or separate PST files.
  • Offers to split bulky-size OST files into small Outlook PST files.
  • Enables creating the log file for the overall conversion process report.
  • Allows for installation on Windows 10, 8, 7, and other Windows OS-supported systems.
  • The converted PST file can be imported in Outlook 2019, 2016, 2013, 2010, and other earlier editions.

How Does This OST to PST Converter Tool Work?

Follow all the steps one by one to export your offline OST files into PST format.

  1. Get the MailsDaddy OST File Converter software from the official site.
  2. Now install and launch this solution on your system. If you start it the first time, a Get License window will appear. If you want to test it before purchasing, click on Get Demo.
  3. Now the software will be open. Here, click on Add File, then choose Add File(s), Add Folder, or Search File(s) to import the OST file in the application. After adding and selecting OST files, press OK. After that, all your OST file databases will show up in the software preview section.
  4. You can select some important emails from the preview port and click on Export Selected to move the selected emails into PST and other formats.
  5. Use the Search Mail(s) option to filter, find, and convert some precious databases into PST and other different formats using some meta-searching options, like To, From, Subject, Time, etc.
  6. Click on the Export tab and choose Export All Folders or Export Selected Folders.
  7. After that, select PST (Outlook Data File.pst) in the Select Export Option.
  8. You can use the Naming Convention and Date Filter optional features as per your needs.
  9. Use the advanced Create Logs option to get OST to PST conversion results.
  10. Now hit on the Browse button of the Destination Path section to provide the saving location of converter PST files; then hit on Next.
  11. Here, select the PST Export options “Create Single PST File for All Selected Folders” or “Create Separate PST for Email Mailbox.”.
  12. You can use one other optional feature, Split PST, to break a heavy OST file into some small PST files.
  13. Now, press the Export button to start the OST to PST file conversion process.

After finishing the migration process, a File Exported Successfully dialog box will be opened. Here, simply hit the OK tab. 

How to Access PST Files in Outlook Again/How to Import PST File Outlook?

Follow all the steps properly to import the Outlook PST file into your Outlook.

  1. First of all, open MS Outlook and click on the top-left option File.
  2. Now choose Open & Export, then hit Import/Export.
  3. In the Import and Export Wizard, choose “Import from another program or file,” then press Next.
  4. After that, select Outlook Data File (.pst) and hit Next.
  5. Now select the Browse tab to add a converter PST file in Outlook. Here, also choose Replace Duplicate with Items Imported, and click on the Next
  6. After that, provide the folder or mailbox where you want to import and hit Finish.

Now you can view all your converted databases in your Outlook wizard.


If you want to access your email data in Outlook again, there is no manual procedure that allows you to convert OST to Outlook PST format. Therefore, it is suggested to use an OST to PST converter to export OST data to PST format perfectly.

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