Stacked columns graph

Hi,

I would like to make a graph which consists of three categories (Factory A, B, C) and each category consists of Four stacked columns (Q1,Q2,Q3,Q4) and each column compares the contribution of each value to a total across sub-categories. Can you tell me if it could be done? for more details see attached 'graph.bmp'. The data is attached as 'graph.xls'

Thanks a lot for reading.


/tahir