Would it be possible to output prt files when in particle mode?
well, as i know this would be really useful 
I second that wish!
it’s currently in progress, actually only the UI is remaining. hopefully in one week will be ready
PRT Export feature is now available for 3ds Max. Please check the nightlies.
To open the particle export menu, right click onto the phoenix simulator.
Currently all particle channels are exported as floats.
Fantastic job
If something that you need is missing ,like the channel export type, please write a post about it.
Getting error from Frost. Error list attached.
Frost PH error Log.zip (359 Bytes)
Thanks for the reply! I will update the export tool as soon as possible!
The issue has been fixed.
There is some channel data, that is missing into the exported files(like the velocity channel). I’m currently working on this.
Thanks for the error reporting! If you guys need something that is missing, please write a message about it, I will try to fix it as soon as possible.