The problem I have with graph paper is that it is never the right size and the black lines make that I can see the learners' dots. So I made my own graph paper in word (12 by 20 blocks) and then I scanned it in. This means it is a pic that you can crop (to make the graph paper the size that you want).
I have also added headings: you can just type in your own words and change the numbers. Everything is already prepared and the right size.
Making the correct graph paper for an Annexure in Exams, tests, etc. have never been so easy!