How to make surface from points smooth

Hello everyone,

there might be a very simple solution I just couldnt figure it out nor find anything online, so I would be very grateful for help:

I have this surface which has a wave shape. Its made out of points. And if you zoom in you can see that the surface isnt smooth. How do I get this smooth?

Here you see what I mean: the edge line is smooth but the surface isnt…

Thanks so much in advance!

How to smooth.gh (73.7 KB)
How to smooth.3dm (7.1 MB)

Hello
I didn’t open you file but you had to know that all beautiful surfaces are represented as mesh. So you see an approximation.
You can change that using that in Grasshopper
image