If you want to convert your EML file to PST format, I suggest you use EML to PST converter software (DataRepairTools). This is the best and most reliable tool that can easily convert your file format without any interruption. It also converts the source EML and EMLX files to MSG, MBOX, NSF, Office 365, PDF, MHT, HTML, and TXT formats. This tool also works with a variety of EML-based email clients, including Thunderbird, Outlook Express, Windows Mail, Eudora, and others. You can try the free demo version to learn more about the features of this software.