I would like to create random pulse width square wave as follows:

ON time: 0.0 to 3.0 Milli second

OFF time: 0.1 to 10.0 Milli second

Voltage 5 VDC

Number of cycle: Continuous

Random pulse width square waves to be created from above conditions and save as CSV format to use as arbitrary waveform.

Example:

ON time--------OFF time
---1.1------------3.4
---0.5------------8.6
---2.8------------0.5
---1.6------------7.2
---2.2------------1.7

I have Tektronix AFG31000 series function generator and Tektronix MSO 4 series oscilloscope.

Any recommendations to create in MS Excel, AFG, MSO or online?

Thanks in advance