[rules-users] matrix style decision tables

Hi all, I want to use decision tables of Drools in xls format. I need tables to be matrix. C1 C2 C3 C1 T C2 F F C3 T T F My decision table should similar to something like above. It will be a symmetric matrix and the action or result will be the corresponding cell. I mean I will give the parameters say C1 and C3 and drools will tell me that it is T. Can I do this? in RuleMatrixSheetListener javadoc, it states something like matrix style decision tables but I didn't understand anything from it.