This is the file structure fror sfx files. Please note this is only the structure, not the full format (which is why everything is shown as "Unknown1", "Unknown2" etc). This will only be useful for people who are familiar with how particles work until it is a fully complete format.
http://pastebay.com/12958
If you figure anything out and wish to share it please feel free. As you can see from the header this is using the structure format for 010 Editor which will allow you to easily edit and view values.

