Noa BA

Hi everyone, 
i have a waveform CSV from textronix DPO 7354C osilloscope,
the signal is very long, about 3 seconds, and i whould like to get the RMS every 1ms over the whole signal,
but im having trouble understanding the data on the CSV and converting is to RMS measurements.
i would appreciateany insite that can help me understand this waveform CSV sinsce i cant fine any information on the web.

here is an example of part of the data (the file is to large to upload):

 

Record Length	2500000	Points	-8.00E-01	1.80E+00
Sample Interval	1.00E-07	s	-8.00E-01	6.00E-01
Trigger Point	8000000	Samples	-8.00E-01	1.80E+00
Trigger Time	1.68E-08	s	-8.00E-01	6.00E-01
			-8.00E-01	6.00E-01
Horizontal Offset	-8.00E-01	s	-8.00E-01	1.80E+00
			-8.00E-01	1.80E+00
			-8.00E-01	1.80E+00
			-8.00E-01	6.00E-01
			-8.00E-01	1.80E+00
			-8.00E-01	6.00E-01
			-8.00E-01	-6.00E-01
			-8.00E-01	1.80E+00
			-8.00E-01	6.00E-01
			-8.00E-01	6.00E-01
			-8.00E-01	6.00E-01
			-8.00E-01	-6.00E-01
			-8.00E-01	1.80E+00
			-8.00E-01	6.00E-01
			-8.00E-01	6.00E-01
			-8.00E-01	1.80E+00
			-8.00E-01	1.80E+00