Using the rapid and reliable WholeClear MBOX to PST Converter Tool. It's the best way to convert MBOX files to PST format. Without losing any data, it is simple to move MBOX data files to PST. All email clients that support mbox, including Thunderbird, Apple Mail, Eudora, PocoMail, OperaMail, Entourage, SeaMonkey, and others, can utilize it. All Windows and Microsoft Outlook versions work with it. Without any limitations, you're able to immediately convert both one or more mbox files to PST.

Steps to Convert MBOX To PST files -

Run the program that you downloaded on your computer.
Add several MBOX documents you wish to convert.
Scan chosen MBOX files and display previews of them among the available export choices, pick PST.
To begin the conversion process, click the Convert Now tab.

Read More - https://www.wholeclear.com/mbox/pst/