go to Grid>Edit Grid here you can add, remove, refine or course etc. the grid.

shimul
Room No 92, Pleinlaan 2
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Francesca <fralotti@...> wrote: Hello everybody, I'm new in the group and
I've used Visual Modflow 3.1
just for one model. I'm now at a good point, good model, good
calibration... but I think it would improve changing the grid
orientation. Does everybody know how can I do in an already existing
model without doing it anew? Which are the files in which grid
information are stored?

Thanks everybody!
Fra