Yes, there is a free and reliable way to change PST files to EML format using the WholeClear PST to EML Converter Tool. This free application allows you to simply export Outlook PST files to EML format without losing data. It works seamlessly on both Windows and Mac and you can export a single or multiple PST files at once including all emails attachments and organizational structure. The utility provides a free demo version & allowing you to test the conversion process before purchasing the complete version. Its user friendly interface makes it suitable for non technical users who require a quick and secure way to retrieve PST emails in clients such as Windows Live Mail Thunderbird and Apple Mail.

Visit here: https://www.wholeclear.com/pst/eml/