RSX is an asset extraction tool for games made with the Respawn Source Engine (Titanfall, Titanfall 2, Apex Legends)
Currently the tool supports the parsing and conversion of RPak files (and a lot of the assets contained within) and Titanfall 2 model files. More formats will be supported in the future.
Documentation/Usage Information is currently not available, but will be written in the near future.
Get the latest release here.