Using Kernel for EML to PST software is the best way to perform smooth EMLX to PST conversion. It converts multiple EML/EMLX files to PST or MSG format simultaneously. The software also provides option to export EML files directly to Office 365. You can use the software for free as well. Simply download its trial version which allows migration and preview of EML/EMLX files. To save migrated EML files, purchase the software.