Convert cob to x3d

What is the difference between .cob and .x3d?

Description: 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.