Stress strain curve in excel 2016 with error graph

Watch this video if you want to plot stress-strain curve in the excel 2016 with error graph. In this video three data set has been taken to plot the graph.

[@shivangjayswal1508]

How to take average of three sample? suppose i want to plot average stress strain curve then how can we take the average of three curve? because all samples have different data points

[@ductrivaa1032]

can i have your data, plz !?

[@wilsonfish1340]

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