Download and install the latest version of Filestar.
Right click on one or more Cob file(s) on your desktop and select Convert with Filestar.
Type convert to x3d in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i file.cob -c "convert to x3d" (how).
Documents - File Explorer─☐✕
This PC › Documents
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Desktop
Downloads
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.cobContract.cob
.xlsxBudget.xlsx
.pdfReport.pdf
.pngLogo.png
Filestar*Help✕
Drop files here to get started
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Let your AI agent convert COB to X3D
Claude Code, Codex, Cursor and other agents can do this on your computer with Filestar. Your files stay on your machine.
Install Filestar and add it to your agents:
npm install -g filestar
filestarcli agent install
Then ask your agent:
“Convert the COB files in my Downloads folder to X3D”
Or run it yourself:
filestarcli -i file.cob -c "convert to x3d"
Runs on your computer, so your files stay on it. Works on Windows, macOS and Linux. 50 free conversions with the npm install, no account needed.
Can my AI agent convert COB to X3D?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.cob -c "convert to x3d" on your computer, so your files stay on it.
COB (Caligari trueSpace 3D Object) is a 3D vector graphics file format created by Caligari Corporation and used by Caligari trueSpace software. It stores three-dimensional scene data, including objects, lights, materials, textures, and animation information.
X3D (Extensible 3D) is a royalty-free open standard file format used to represent 3D computer graphics. It is used to store and interchange 3D model data, including surface geometry, color, animation, and metadata. X3D files are built on the XML standard, and can be viewed and edited with a variety of 3D modeling programs.
