Export messages from emx file

Hi Team,

We wanted to export msg from emx files, we have largeset of emx files.

we do have EMC source one installation in our environment, which has Objectviewer which can open single emx and can export some buffer file from it but it seems encrypted.

what the encryption of this buffer file and how to decrypt and convert it back to msg file format.

Is there any command line tool that can help us with this ?

Thanks