Sleeping Dogs Model Extraction?

Hi all, i'm new here. I found that this community is pretty awesome, so I decided that this is where I'll be gaining my foot as a programmer/modder.

Anyhow, I had failed to find any topic on model extraction for the game Sleeping Dogs. I had encountered the Bigextractor, which I found quite useful, but when I try to discern the specific file types within the extraction's folder, I am at a loss. The filetype simply reads "file"... so... I'm a bit stuck from where to go from from here. Any help?