Graph millimeter grid:
Here you can find PDF graph paper templates (engineering paper) for self-printing.
These are suitable (better than Word, Excel or OpenOffice files) for drawing function graphs and measured values (diagrams). The full tens of the grid (i.e. every 10 millimeters) are represented by thicker lines.
All our graph paper preprints are available in black, blue, red and gray, each in DIN A4 and US Letter format. The files are free to download and save you from buying expensive paper.