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.