X_B to TXT Conversion Explained
Converting .X_B (Parasolid binary) files to .TXT (plain text) transforms compiled 3D CAD geometry into a human-readable text format. People perform this conversion to inspect file structures, extract metadata, or bypass binary compatibility issues between different operating systems.
When you convert .X_B to .TXT, you gain transparency. The binary data is decoded into readable coordinates, topology definitions, and assembly structures. However, you lose direct usability. Most CAD software expects Parasolid text files to use the .X_T extension, not .TXT. Furthermore, the file size increases significantly because text characters require more bytes than packed binary data.
This conversion is a bad idea if you simply want to open a 3D model in another CAD program. For standard 3D sharing, converting to .STEP or .X_T is the correct workflow.
Typical Tasks and Users
This conversion serves specific technical workflows rather than general design tasks:
- CAD Administrators: Debugging corrupted 3D models by reading the raw geometry definitions in a text editor.
- Software Developers: Writing custom scripts to parse Bill of Materials (BOM), part names, or coordinate data without needing a full CAD kernel.
- Data Archivists: Storing 3D data in a universal, future-proof text format that does not rely on proprietary binary decoders.
- System Integrators: Migrating CAD data between hardware architectures with different byte orders (endianness), where binary files might fail to load.
Software & Tool Support
Handling .X_B files requires software built on the Parasolid kernel or specialized translation libraries.
- Siemens NX: The native environment for Parasolid files. Can export geometry as text.
- SolidWorks: Uses the Parasolid kernel and can save models into text-based formats.
- HOOPS Exchange: A commercial SDK used by developers to read and convert .X_B data.
- Notepad++ or VS Code: Standard tools for viewing and searching the resulting .TXT files.
Pros and Cons of the Conversion
Pros:
- Human-readable: You can open the file in any basic text editor to inspect the data.
- Cross-platform safety: Plain text eliminates binary endianness issues between Windows, macOS, and Linux systems.
- Version control: Text files work well with Git or SVN, allowing developers to track line-by-line changes in geometry or metadata.
Cons:
- Massive file size: A .TXT representation of a 3D model is often 2 to 3 times larger than the original .X_B file.
- Loss of CAD association: Double-clicking a .TXT file opens a text editor, not your 3D modeling software.
- Slower processing: CAD programs take longer to parse and load text strings than to read compiled binary data.
Conversion Difficulties & Why Convert.Guru
The main difficulty in converting .X_B to .TXT is the proprietary nature of the Parasolid binary format. You cannot simply change the file extension or use a basic text extractor; doing so yields unreadable gibberish. A true conversion requires a specialized engine to decode the Boundary Representation (B-rep) data, faces, edges, and vertices, and then map them into a structured text schema.
Convert.Guru handles this complex binary decoding securely on the server. It extracts the geometry and metadata accurately into a clean text format without requiring you to purchase expensive CAD licenses or install heavy SDKs. The pipeline ensures that the mathematical definitions of the 3D model are translated into text without precision loss.
X_B vs. TXT: What is the better choice?
| Feature | .X_B (Parasolid Binary) | .TXT (Plain Text) |
| Data Type | Compiled 3D geometry | Unformatted text strings |
| File Size | Compact and efficient | Large and uncompressed |
| Human Readable | No | Yes |
| CAD Compatibility | High (Native to many systems) | Low (Requires parsing or renaming) |
| Version Control | Poor (Binary blobs) | Excellent (Diff-friendly) |
Which format should you choose?
Choose .X_B for active CAD design, efficient storage, and fast loading times in software like Siemens NX or SolidWorks. It is the superior format for actual engineering work.
Choose .TXT only if you are debugging a file, archiving readable data, or writing custom scripts to extract metadata.
Avoid this conversion entirely if you need to share a 3D model with a client or manufacturer. Instead, convert the .X_B file to .STEP for universal 3D compatibility, or to .X_T if they specifically request a text-based Parasolid file.
Conclusion
Converting .X_B to .TXT is a highly specialized process meant for developers, archivists, and CAD administrators who need to inspect or parse 3D geometry as human-readable text. The biggest limitation to watch for is the significant increase in file size and the loss of automatic CAD software association. For users who need to extract this data without installing heavy engineering software, Convert.Guru provides a fast, accurate, and reliable way to translate complex Parasolid binary structures into accessible plain text.
About the X_B to TXT Converter
Convert.Guru makes it fast and easy to convert Parasolid binary files to TXT online. The X_B to TXT converter runs entirely in your browser, so there’s no software to install and no account required. Powered by one of the industry’s largest and most trusted file format databases—maintained for more than 25 years—our technology reliably identifies X_B files even when they are damaged or incorrectly named. Uploaded files are automatically deleted after conversion to protect your privacy.