Four Way Interpolation?

Dear community,

I am not really sure if the "name" of what I trying to do is what I typed in the title, but I don't know how else to word it...

So I have a set of data in the excel file attached, that basically has two parameters ZZ1 and ZZ2 that need to be calculated based on an interpolation of FOUR other parameters to the left.

I really don't know how to solve this, I would really appreciate it if someone could help me out.

Thank you so much!

Best regards,


ORLANDO