Excel Chart Wizard, Connecting Scatter Diagram points

I'm composing a chart from 3 columns of data, and need help to format on Excel for Mac, Office 365.
All columns are %s. first is X axis: relative % 0 - 200, of Y and Z.

The Chart Wizard is good with the Scatter diagram, but I'd like to connect the Y points and the Z points with line segments or a curve and shade the under curve portions of both with different colors and different transparencies. And some instances of the scatter don't seem to offer point label suppression.

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