Convert xgl to x

What is the difference between .xgl and .x?

Description: XGL 3D CAD Models are computer-aided design (CAD) files used for creating 3D models for engineering, design, and manufacturing purposes. These files contain 3D geometry, views, and other information used to help design and create 3D models. They are used in CAD-based applications such as Autodesk Inventor and Solidworks.; X is a DirectX Model image file used by DirectX technology which is for 3D graphics rendering in games. The file format specifies 3D object structures for meshes, textures, animations, and objects.