Zend certified PHP/Magento developer

Find ranges that have #N/A in every cell

I have a bunch of columns that have either random IDs or #N/A. I’m trying to find the rows that have no solutions or have #N/A in all the cells in a range.

If all of the cells in a range have #N/A there is a problem
If at least one of the cells in a range have something other than #N/A, then its good!

In the picture, the red are the columns I am trying to compare and the yellow is the column I’m looking for.

How do I approach this?

Sample data