With HPT? Sort of... I believe you can read in a .bin once, then it gets converted to a .hpt. So you could start with a stock .bin for your vehicle, modify it with TinyTuner, than load it with HPT. But you can't (easily) go the other direction (from hpt to bin)

AFAIK anyways, I've never had HPT so I'm just going on what I've read.