MailsDaddy Free EML Viewer is a trusted tool to open and read EML files without installing Microsoft Outlook. EML files are generated by email clients like Windows Live Mail, Thunderbird, Apple Mail, and other applications. It is designed specifically to solve this problem by allowing you to open and read EML files directly on your system. The tool lets you preview single or multiple EML files in one place, while maintaining the original email formatting, attachments, and folder structure.