This program is a viewer for MD2 objects. 
There are many free MD2 models that you can find on the Internet. 
To view a model use File->Open. The model opens without any bitmaps. 
To add a bitmap(a skin) press on the Load Bitmap icon. 
Drag to model with the mouse to rotate it.

Please note that the save option saves
only one frame. To use an MD2 animation inside your program use the original MD2 file.
The morfit 3D Engine supports MD2 object(Morfit engine_load_world() or 
Morfit_object_create_from_file()). 

The MD2 format was invented by ID software(Doom & Quake).