Email to PDF Converter is a dedicated free and open-source software to convert EML files to PDF format. As it supports batch conversion, you can convert multiple EML files to PDF at a time. The ...

Oh, and yeah, you can't 'open' multiple types of files at once since they would not all 'open' in the same software. I suppose you could make a feature request to Microsoft to add that capability, it ...

Microsoft uses file associations to set default programs for opening different file types on all its operating systems. As a result, when you open a file, be it text, image, or document, on your ...