File created by Parasolid, a program for CAD geometric modeling; contains data such as geometry, topology, and color; designed as a standard exchange format for sharing CAD models; saved in binary format and may be imported or exported by other common CAD programs. X_B files are used in place of older version XMT_BIN and XMP_BIN files. .X_T files store the same data as X_B files, but in text format. X_B files are used by the Parasolid standard, Translators, and Bodyshop editions.
The X_B file extension is associated with the Parasolid 3D CAD application providing core functionality that enables users to rapidly and robustly model the industry’s most complex products. The X_B file contains saved Parasolid project including 3D data, geometry, color, topology etc. X_B files contains the same data as X_T files. However X_B files are stored in binary file format.