ply
format ascii 1.0
comment this is a comment
element vertex 3
property float x
property float y
property float z
element face 1
property list uchar int vertex_index
end_header

0.0 0.0 0.0
comment this is another comment
comment and another

1.0 0.0 0.0
1.0 1.0 0.0
3 0 1 2