I suggest SysInspire MBOX to PST Converter Software to convert MBOX files to Outlook PST format, which exports MBOX files into Outlook PST files with all attachments. It helps clients to convert MBOX files directly, saving them a lot of time and effort. Its inquiry feature assists clients in locating MBOX files in any location. Clients can use MBOX to PST Converter to export MBOX files to Office 365, which is a cloud-based service. You can try the free trial version of this app before purchasing the complete version to get a feel for the features and functions of this MBOX to PST Converter.
Read More:- Convert MBOX to PST
Start the Apple Mail on your system.
Click File >> Import Mailboxes.
Select all the files that you want to import in the MBOX. Click Continue.
Browse to the location where you have saved in the MBOX file. ...
After the process gets complete, click Done.