X_B Files are files that have been created by Parasolid, which is a program commonly used for CAD geometric modeling. The X_B file contains data such as geometry, topology, and color. X_B files are saved in binary format and designed in a standard exchange format to aid in sharing CAD models. Since X_B files are saved in binary format, they may easily be imported or exported by other common CAD programs. X_B files are used by the Parasolid standard, Translators, and Bodyshop editions.