The good news is - we can help! If you're stuck trying to open MSG or EML files but don't have access to your Outlook client, CoolUtils' Mail Viewer is the perfect solution. Added to that, Microsoft's EML format (associated with Outlook Express) also gives users problems when trying to open and view. Although Microsoft's MSG format is great for storing emails, there just aren't many ways to access and view those files outside of the Outlook server Exchange client. Coolutils' Mail Viewer is a free program that lets you view MSG, EML, EMLX, P7M, ICS, VCF and winmail.dat (TNEF) files.