### Description

A file of XYZ coordinates is a very easy format that can be used for simple storage from many applications. This example demonstrates how to read this type of file into a polydata object. An example file of three points would look like this:

0.0 0.0 0.0 1.0 0.0 0.0 0.0 1.0 0.0

As a demo, save the above three lines to a file called simple.xyz
