A file with .cf2 extension is a CAD file format that contains 3D package designs or other model data for die-cutting. Most of the CAD/CAM machines can process and cut these files. It was created by the National Space Science Data Center (NSSDC) to provide self-describing data storage and manipulation format that matches the structure of scientific data and applications such as statistical and numerical methods, visualization, and management.
Files with WMF extension represent Microsoft Windows Metafile (WMF) for storing vector as well as bitmap-format images data. To be more accurate, WMF belongs to the vector file format category of Graphics file formats that is device independent. Windows Graphical Device Interface (GDI) uses the functions stored in a WMF file to display an image on the screen.
You can also convert CF2 into many other file formats. Please see the complete list below.