A `.XMT_BIN` file is primarily used as a Parasolid “binary transmit” exchange file that embeds the actual model geometry—faces, edges, solids—straight from the Parasolid kernel, helping CAD tools swap accurate data through a serialized binary form that’s optimized for performance and not human-readable.
Functionally, Parasolid transmit files come in text (`.x_t`, `.xmt_txt`) and binary (`.x_b`, `.xmt_bin`) flavor pairs that most systems treat as equivalents, with `.x_b` more common and `.xmt_bin` used by some exporters, and accessing the file means importing it into Parasolid-compatible software; when the importer displays only `.x_b`, renaming `.xmt_bin` to `.x_b` is a common workaround since the binary content itself doesn’t change.
With an `.xmt_bin` file, what you mainly do is import its Parasolid geometry into engineering software, since it stores full solid/surface data rather than meshes or drawings, letting CAD systems such as other Parasolid CAD open it for inspection, dimensioning, drawing creation, and continued modeling, and also allowing CAE tools like ANSYS Workbench to use it for meshing and analysis.
If you need to share the model with users who lack strong Parasolid support, you can convert it via your CAD system into broadly recognized formats such as STEP for solids or IGES surfaces for surface-heavy data, or into mesh types like STL/OBJ for printing or visualization at the cost of losing real CAD geometry; you can also clean the model by importing it, using heal/repair tools, and exporting again, and you can use the `.xmt_bin` as a diagnostic export to test whether issues come from the native model or from translation when reimported elsewhere.
The two simplest ways to open an `.xmt_bin` file are either importing it directly as a Parasolid file in software that already supports Parasolid or renaming it to a more commonly accepted Parasolid-binary extension when the file picker is being strict, with the first method using File → Open/Import and selecting Parasolid to load the solid/surface model properly, and the second method involving copying and renaming the file to `. If you treasured this article therefore you would like to obtain more info about XMT_BIN file structure kindly visit our web site. x_b` so programs that hide `.xmt_bin` still accept it as the same binary Parasolid format.



