Extract text from Topcon point clouds (CL3)
To convert CL3 point clouds to another format, you need Topcon MAGNET or other 3D software.
To convert other file formats to the "Lidar Point Cloud File" file type, you need software like Topcon MAGNET or a similar tool.
A .CL3 file typically functions as either a Topcon Point Cloud Data file generated by 3D Lidar scanning equipment (like the Topcon GLS-1000), or as an obsolete Easy CD Creator and CloneCD layout file. In rare industrial scenarios, it also stores machine data logs for Caterpillar VIMS or DIRECTV diagnostic data.
To view Topcon point clouds, professionals rely on heavy CAD applications like Autodesk ReCap, Agisoft Metashape, or Topcon MAGNET. For the older CD layout variants, legacy versions of Roxio Creator are required.
The Topcon .CL3 format is heavily proprietary and locked to specific commercial 3D ecosystems. The files are massive, often spanning gigabytes, and lack native support in popular open-source analysis tools like CloudCompare. Relying on this format forces users into expensive software subscriptions just to read basic spatial and color data. Meanwhile, the CD layout variant is completely obsolete, trapping old disk projects behind outdated 32-bit software.
For modern 3D scanning workflows, you should convert .CL3 to an open standard like E57, PTX, or LAS. For legacy CD projects, extracting the container data to a standard ISO is the most practical workaround. Note that point cloud conversion may strip proprietary hardware metadata or alter internal coordinate indexing.
The .CL3 format is exceptionally difficult to open or convert because Topcon actively protects its intellectual property, restricting access to the format specifications. Often, only the original Topcon SDK or a licensed Autodesk tool can accurately reconstruct the spatial matrix. Standard online converters fail completely on these complex binary files. If our analysis detects a supported underlying Microsoft Compound format for a CD layout, viewing or conversion may still be possible.
Convert.Guru analyzes your CL3 file, detects the exact format, and lets you read the text inside.
Users also converted SZ, NV3, EXPORT7 and CL4 files.
If you want to convert CL3 file to , you can use Topcon MAGNET or similar software from the "Point Cloud Data Storage" category. In the File menu, look for Save As… or Export….
To convert files to CL3, try Topcon MAGNET or another comparable tool in the "Point Cloud Data Storage" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our CL3 converter.