The em2 file extension is associated with Emax II, an audio editing tool and 16-bit sampler.
The em2 file contains sound bank for Emax II program. Seems to be obsolete.
How to open:
Use Emax to work with *.em2 files.
How to convert:
As far as we know, this .em2 file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.