first thank you for your help. I am creating a simple chart in Excel with x and y axis. The thing is that I would like to define a range of values in order to not put all of them in the cells. Something like this:
x y
1-128 2
128-1234234 555
Is this possible?
Yes, it is possible. Make a chart of the end points of the ranges.
Then select the whole thing and insert a scatterplot with rigidly joined points. That will do it.