how to loop through cells using macro
 

How can I loop through all the cells and get the cell centroid coordinates using macro?

What is that you want to get as a final result?

I want to create a mapping btw the mesh of my own model written in Fortran and the mesh of STAR-CCM+. Thanks.

This realy seems to require a java macro (first i hoped Field Function would help) that i am not good at. So - no ideas to be honest.

Unless you really need it in Java, I'd just use a table. Set up a Table under tools with the components of centroid and export as a CSV.