For the Best Converter for EML files, I would suggest the EML Converter Tool. It easily converts multiple EML files into another format such as EMLX, PST, PDF, MSG, MBOX, and CSV. Moreover, the tool imports EML files into Office 365, Thunderbird, Gmail, G Suite, Hotmail, IMAP, AOL, etc. The tool provides simple steps for converting EML files. Additionally, the tool supports EML Converter on Windows and Mac.