All, I am using excel for writing the rules. is it possible to have conditional operators like OR AND specified in the excel? I also need to support negation (NOT) operator. Is it possible to do this in excel, if yes can someone give me an example on how to do this. -- View this message in context: http://n3.nabble.com/setting-conditional-operators-in-Excel-RuleSet-tp692... Sent from the Drools - User mailing list archive at Nabble.com.