If you are finding the software for importing MBOX to Outlook PST then I would like to suggest you software named as eSoftTools MBOX Converter Software. It can import bulk MBOX files as well as a single MBOX file selectively. It has a very clean and user-friendly graphical interface that helps both types of technical and non-technical users to make conversions very easily. If you want to use the software before investing money in it. Then you can use the free demo version of the software. Which is fully safe and the same as the full version of the software. You can download and buy the software from the official website of eSoftTools.
For More Info:- Search on Google eSoftTools softwares
For More Info:- Search on Google eSoftTools softwares