How to reduce points of a surface

 From:  Matadem
11660.1 
Good day.
I am trying some surface modeling here.
The curves were done in Moi exported as 3dm to plasticity to be done with xnurbs then exported as step file back into Moi.
Now in Moi how would I reduce the amount of points so I can further modify the surface?

Also would these the best exporting files to be doing this?

Tnx.

EDITED: 26 Feb by MATADEM

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