How can I apply operators to a vector field?(divergence, curl, Laplacian..)

I have text files about a 3D vector field. They are just numbers at each point, not functions. I have 3 of this files about X,Y and Z direction, as well as files about the spacing.

How can I get divergence/curl/Laplacian.. about this vector field?

Thank you in advance!

Answer 1

[Star Strider]

divergence, gradient, curl, del2 and all that!