The virtual reality modeling language (VRML) is a file format for representation of interactive 3D world objects over the world wide web (www). It finds its usage in creating three-dimensional representations of complex scenes such as illustrations, definition and virtual reality presentations. The format has been superseded by X3D. Many 3D modelling applications can save objects and scenes in VRML format.
PLY, polygon file format, represents 3D file format that stores graphical objects described as a collection of polygons. The purpose of this file format was to establish a simple and easy file type that is general enough to be useful for a wide range of models. PLY file format comes as ASCII as well as binary format for compact storage and for rapid saving and loading.