Extract text from Celestia models (CMOD)
To convert CMOD models to another format, you need Celestia or other 3D software.
To convert other file formats to the "Celestia 3D Model File" file type, you need software like Celestia or a similar tool.
The .cmod file extension is a proprietary 3D model format specifically used by Celestia, an open-source 3D astronomy and space simulation engine. These files contain geometric mesh data, vertex normals, UV maps, and material definitions required to render spacecraft, satellites, and asteroids in real-time within the simulation.
The major disadvantage of the .cmod format is its highly specialized, closed ecosystem. It exists in two variations: an ASCII text format and a compiled binary format designed for faster engine loading. Because it is built exclusively for Celestia, mainstream 3D modeling software like Blender, Autodesk Maya, or Cinema 4D cannot natively read, import, or export these files. This strict limitation locks your 3D assets inside a single application and makes editing existing game assets frustrating.
To modify or reuse these assets, users typically need to convert .cmod files into standard 3D formats like OBJ, GLTF, or FBX. Converting away from .cmod often results in the loss of Celestia-specific shader parameters, meaning materials will need to be rebuilt in your target software.
Because this is a niche format, standard online converters fail to parse the proprietary data structures.
Convert.Guru analyzes your CMOD file, detects the exact format, and lets you read the text inside.
If you want to convert CMOD file to , you can use Celestia or similar software from the "3D Model Storage" category. In the File menu, look for Save As… or Export….
To convert files to CMOD, try Celestia or another comparable tool in the "3D Model 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 CMOD converter.