Draw contour from scattered x, y, z data points (topography)

I am interested in Mathcad for the sole purpose of drawing contours based on spot elevations that are scattered (x, y, z), i.e. not in a unique grid. I'm testing Mathcad Prime 9 for this.

I saw online that previous edition of Mathcad could do this, but I am unable to find the functionality in Mathcad Prime. Could you guide me to the speicifc process that I can use to achieve this. In summary, I have data points scattered in 3d space, with each data point having x, y, z coordinates. I want Mathcad to draw contours in 2D (axes representing x and y, with contours drawn between z values). An example of a process is described here, but I cannot find this functionality in Mathcad Prime (see Slide 53 and later):  https://www.foundationperformance.org/pastpresentations/ClarkPresSlides13August14.pdf

The xyz data I am trying to get contours for is currently in an excel file, attached.

Looking forward to receiving your feedback!