.RPNM File

The RPNM file extension used for some sort of Portable Image bitmap format. Most likely rare or obsolete, still viewable in XnView.

How to open:

Currently there is no specific information available, about how to open this bitmap file type. For general information try to look at:Basic info how to open bitmap images

How to convert:

There is no specific information in the database, about how to convert this file extension. For general information try to look at:Basic info how to convert bitmap files