[rules-users] Decision Table( How to use PRIORITY in the Decision table, i am unable to find in the documentation provided please help)

Hi, I am using Decision table to represent the business rules, i want to give priority to set of rules (here rows) to be executed first before other rules i found the keyword to achieve that but i am unable to find how to means where should i add this keyword in the Excel file. Please provide the details, i am stuck in the middle please help. Mohiuddin