Help reading BinaryData from PromptImportFile

Right now I am trying to write a plugin to import a type of model from my desktop, so far I have a way to grab the files data but I am unsure of how I can get roblox to read and translate this to parts. I know that clone trooper has done this with his plugin VMP importer. My problem is there is little to no information about reading BinaryData and I wanted to know if anyone had a insight as to a way this could be done.

I now know how to attempt to import the binary data into a script yet still what can I do with this, does anyone know?