*TPRE
Optional arguments:
Using *TPRE records a new output text file, filename$$ tpre.txt, where filename$$ is the input thermal file *.in name, without the extension. This file records the time increment, the X, Y, Z coordinates of the laser heat source at the current time increment, the starting temperature prior to heating, and a binary flag for the preheat temperature(s) which report a value of 1 for any increment temperature that is above the temperature of interest, and 0 for any temperature less than or equal to the temperature of interest.