Manually import the OST file using Outlook and conversion software.

Convert OST file to PST file using 3 easy methods. Describes two ways to manually export OST file to Outlook PST and one way to use conversion software.

3 ways to import OST file into Outlook


OST and PST are known data files used to store user data. MS Outlook uses both files. Creating an Outlook data file is determined by your account settings. When you set up an IMAP account, Outlook creates an OST file to store your data. Outlook uses .pst data files when the account is set up in a pop-up.

Many Outlook users prefer OST files that they can work with without an internet connection. The OST allows users to access previously downloaded data such as emails, calendars, magazines, and create new emails and contacts in offline mode.

Learn why users convert OST to PST and manually convert OST file for this post to PST format. We also talked about the best software for converting OST to PST. If you are looking for the best way to import OST file into Outlook, this post is for you.

Why do I need to convert .ost files to .pst format?

There are many reasons to convert OST file to PST format, including corrupted OST file due to some of the most important reasons including internal error, sudden power outage, virus infection and functional software. If you accidentally delete some of your mailbox data from your OST file, you just need to download a new Exchange Server OST file. All important data needs to be transferred to the new system, especially if the organization is changing. For these reasons, users convert OST to PST.

Manually convert OST file to PST file

You can manually import the .ost file into Outlook. In this section we will use the best two free ways to convert OST to PST. You must be connected to an Exchange server to use these methods. Outlook is also required for these methods.

Note: Make a backup copy of the OST file before using these methods.

Method 1: Save your mailbox in PST file format.

Log in to Outlook with your Microsoft Exchange account.

Go to the file menu.

Select Open and Export> Import and Export.

Under Select action to perform, select Export to file and click Next.

Select Outlook Data File (.pst) from the Create File Type menu and click the Next button.

Select the folder you want to export and press the following button. Set the file path and select the check box to export duplicate items.

Click the [Finish] button to complete.

Method 2: Convert .ost file to .pst file using file


Start Microsoft Outlook.

Browse to the file.

Select the Options menu and then select Advanced.

Select the Auto Archive option.

Sets the number of days to run automatic archiving.

Please enter the address and press the OK button.

You can use the above method to convert OST to PST for free. However, these techniques have some drawbacks.

Data may be lost.

This will take some time.

It’s difficult to do.

The OST file could not be recovered.

Method 3: With the best OST to PST converter, you can convert OST to PST


In this case, use the SysTools OST to PST Converter tool. You can use this software to repair corrupted OST file. The software also offers a variety of output options. You can use this software to convert OST to PST, MSG, EML, MBOX, RTF, HTML and other convenient file formats using OST to PST converter. This software can be used to migrate OST to Office 365. You can use the free demo version of this tool to convert OST to PST for free. With this trial version of the software, you can preview the OST file and export the first 25 items in each folder.

After downloading, please install the software.

Launch the software, select the OST file, and select the Add File option.

After selecting the OST file, click the OK button to start the upload process.

After the procedure, the software will generate a preview in the software window.

Select the Export option and the folder you want to convert.

Select PST as the output option and enter the location where you want to save the resulting PST file.

Click the following button to start the OST to PST conversion.

Once the conversion is complete, you can open the converted PST in any version of MS Outlook Scientific Articles including MS Outlook 2019.