creating contour plots with .txt data

[Mark Schuster]

Hi

I was wondering if anybody knows if I could use grads to make a contour plot of
variables that i have in a regular text file.  A have average moisture flux
values for specific lat/lon squares and would like to create a contour plot of
these. I have tried doing this with Excel, but Excel creates the stupidest
looking plot, and my values are averages over a 2.5x2.5 degree square, and
Excel is interpreting them as being point values.

Can anyone suggest anything?

Thanks a lot

Mark