What is the description of the data placed in an oscilloscope "Mathcad", "MATLAB" formatted header file?

What is the description of the data placed in an oscilloscope "Mathcad", "MATLAB" formatted header file?

The Mathcad, or MATLAB files saved by Tektronix Windows based Oscilloscopes with the hdr.dat file extension have a five line header with the structure as follows:

RecordLength := header0                               Number of acquired data points
TimePerPoint := header1                               Time between data samples
TriggerPosition := header2                             Index to the trigger position in the data record
FractionalTriggerPos := header3                    Fraction of a sample interval to the trigger position

Horizontal Offset in Seconds :=header4        Time position of the first sample in the data record

The sample values are then listed in the .dat file.