What is a rpmsg file and how do I open a rpmsg file?
RPMSG are Outlook email message files that store the message body and attachments, but restricts who can view, print, copy or forward the email based on permissions set by the sender. Encryption is incorporated so that only authorized entities have rights. RPMSG files are sent as an email attachment to a standard email message.
Relevant rpmsg file links:How to open rpmsg file on Youtube
How to open rpmsg file on Wikipedia
How to open rpmsg file on Microsoft.com