Data analysis from excel sheet

Values are to be calculated from a curve having data in form of pulses containing ripples, in the form of percent amplitude of (ex. 10% to 75% will be rise time, time from 100%-20% will be fall time) . So the data needs some filtering method to be applied first . after which need to calculate such data for each pulse , thereby each excel sheet.

Some Screenshots of the manual execution done in simulink are attached.