The T3STERPROJECT.MRn file

n is the channel serial number in the filename extension.
This data array has been interpolated to the logarithmic time scale.

The order of the data in the data records: time [sec], response [°C], 1st derivative of the response [°C/-], time-constant spectrum [°C/W/-] (related to 1 W power-step), replica of the response with zero initial offset [°C].

If NOTIMECON then the fourth column of the data array is zero.