This format is used for data exchange in programs that work with vector graphics from Corel, and also for printing completed designs. It contains image data and also the metadata that describes it. In CMX it’s possible to store layers that can be independently edited. The format is recognized by Adobe Illustrator versions 6-8.
RTF is a document file that supports several text formatting options. It is a proprietary file format of Microsoft. One of the drawbacks of RTF format is that it cannot contain or format any data, images, and diagrams other than texts. It can format the texts only.