How to Open EML Files Open the file in a mail client. Change the extension to view it in a browser. Download and install FreeViewer EML File Viewer. View the file as plain-text. EML files are not opening in Outlook Express, even though it is installed. ... (more items) See More....Is An eml file a virus?
The .EML files are the type of files susceptible to 'transporting' viruses, Trojans and worms that could damage your system. Due to the ease of exchanging information that this type of files represents, it became a favorite target for hackers.