If you have an EML file and you want to view that file without dependency on any email client application, then you can try the effective and well-functioning tool -> eSoftTools EML Viewer software. This smart tool helps you to access your EML/EMLX file without using any email client server. You can view your EML/EMLX file with all email attachments (Contacts, PDF, Notes, Calendar, etc.) in their original format. This software is supported for all email client-based applications like:- Thunderbird, Outlook Express, Apple Mail, and more. You can preview the email on a single screen with complete EML email information – To, BCC, CC, Subject, Size, Message Body, etc.
Learn more about this software by following the link.