X_B File Extension
Parasolid Model Part Format
- File Type x_b
- Developer Siemens PLM Software
- Popularity
- Application Parasolid
- Category CAD, CAM and CAE Files
- Format Binary
What is a X_B file?
The X_B file extension is linked to Parasolid Model Part Format and belongs to the CAD, CAM and CAE Files category, which includes 148 files.
With the creation of the Parasolid Model Part Format (X_B), Siemens introduced file format along with 7 programs built for their use.
X_B file support extends to various operating systems, including Windows and Mac OS. You can open a X_B file using one of 12 programs, for example Parasolid, Afanche 3D Viewer and Autodesk Inventor.
Programs that support X_B files
How to open a X_B file?
The most common reason why a X_B file cannot be opened is the absence of required software. To fix this, select a compatible program from the list. Then visit the official developer website via the provided link, download the program, and install it on your system.
When it comes to opening and working with X_B files, Parasolid, Afanche 3D Viewer and Autodesk Inventor are the top choices for users. If you want the most recent release of Parasolid, head over to the Siemens PLM site and download the version designed to run on all platforms.
After installing, your OS should instantly open X_B files with Parasolid.
Set Parasolid as the default X_B handler
Changing Default Programs in Windows
- Start by right-clicking on your X_B file and selecting the "Open With" option. From there, click "Choose another app" to continue;
- In the pop-up window, find and select the Parasolid application from the available options;
- Make sure the "Always use this app" checkbox is checked and click "OK" to confirm your choice as the default app for opening X_B files.
Choose an app to open a file on Mac
- Right click or use Control + left click on the desired X_B file to launch the file options menu;
- Select "Open in application" and click "Other";
- Look towards the bottom of the window, where you will find the "Enable" menu. "Recommended programs" will be the default selection;
- Choose "All Programs" in this menu and search for Parasolid. Check the box next to "Always open in app" to set it as the default option.
Effective solutions for X_B file problems
Problematic X_B files can usually be resolved by making small changes in your software. See the tips below to help fix common issues.
What Causes Parasolid to Crash Frequently?
Parasolid crashes can be attributed to outdated software. Make sure you have installed the latest updates for Siemens PLM products.
Restarting your computer can resolve numerous common problems, so it should be the initial step before changing any software-related settings.
How can I restore a damaged X_B file?
Use a recovery program to open the damaged X_B file and navigate to the "Repair" menu item. Please be patient while the recovery process completes, which will automatically restore the damaged cad, cam and cae files.
What are the signs that my X_B file is damaged?
Common indications of damaged X_B cad, cam and cae files are:
- Editing the archive in Parasolid results in slow or unresponsive behavior;
- The file causes Parasolid or other programs to hang or crash during operation;
- Attempts to open the file result in errors or failed results;
- Unexplained increase in X_B file size;
- Working with the file triggers the display of error messages;
How to edit a X_B file?
To edit X_B files, it is essential to install software that supports not only viewing but also editing the cad, cam and cae files. Online X_B editors provide limited functionality compared to full-featured software for Parasolid Model Part Format.
Best X_B editors in 2026
Based on the specified criteria, here is a list of X_B editors that may fit your requirements.
| X_B Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| Parasolid | Siemens PLM | Windows | 4.9 out of 5 (39 reviews) |
Convert to and from X_B
If working with a X_B file is challenging, one solution is to convert it to formats like DXF, IGS, STEP, PDF, PLY or other supported formats.
Keep in mind that converting a X_B file may introduce some limitations, but the original format can often be restored.