Creating a smaller array from a large one

Hi, this question might have a simple answer, I hope it does. Perhaps you can help? I have a pretty large data array (say 10,000 rows and 80 columns) and would like to create a smaller array from it by copying every 10th row and all of the columns.

So from 10,000 x 80 to array with 1,000 x 80.

Is there a simple way to do this? Thanks in advance.