I asked this question already on stackoverflow but it hasn't been answered yet. Instead I was advised to try it here, so here I go :)

So there's that simple XY-Line-Chart in Excel (2010). It is surrounded by two other graphs which are parallel but offset by the same factor in both the positive and negative direction - something like this:

---------------- (positively offset parallel graph)

---------------- (main graph)

---------------- (negatively offset parallel graph)

Now I want to color the space between the main graph and the offset ones, but I just can't seem to find a way! Is it maybe possible with VBA? Or is there maybe a solution for Excel 2007?