MIME operates as a standalone utility  to interpret MIME-formatted
    messages received by VMSMAIL. Use the VMSMAIL command EXTRACT/NOHEADER
    to extract a MIME-formatted message received by VMSMAIL into a text
    file.
 	MAIL> EXTRACT/NOHEADER filename
    A message is opened for read access in one of the following ways:
 	$ MIME filename.xxx
 	MIME> OPEN filename.xxx
    The OPEN command opens and decodes the message file, in preparation
    for file viewing.
    Use the MIME READ command to display the file.
 	MIME> READ
Additional Information:
explode
extract