You can use the manual method to import email from OST to PST in Outlook If you want to know how the manual process will look then you need to follow these steps.
Step 1: Open the Microsoft Outlook email client.
Make sure your Outlook account is associated with the OST file.
The data should be saved as a PST file in Outlook.
Step 2: Select “File” from the menu.
When Outlook opens, click the File tab in the upper-left corner of the window.
You can select Open & Export in the options.
Then, select Import/Export.
Step 3: “Move to File”.
To export a file using the Import and Export Wizard, choose “Export to a file.”
Click the “Next” button.
Step 4: Select the Outlook data file (.pst) format.
On the following screen, select Outlook Data File (.pst).
Click the “Next” button.
Step 5: Select the export destination folder.
Select the location or email address to which you want to send the file.
You can select specific types of emails, such as Delivery, Contact, or Inbox. To add a subfolder, make sure the Add Subfolder box is checked.
Step 6: Choose a location to store the PST file.
Select a location to save the PST file and click Browse.
Name the file, select a location on your computer to save it, and click Finish.
Also, the users have one more solution with OST to PST Converter Software which is the best solution and supports bulk OST file conversion solution without any single error. This software has a simple and easy-to-use graphical user interface so that users can easily use it without technical understanding. Users can install it on Windows OS to email from OST to PST in Outlook and users will get a free demo version to try out its features.