import data from excel sheet to for lookup table

Hi I'm running 2011b, and i made a model of a drum level control of a boiler. I made a table in excel of the pressure and the temperature. I'm able to import the file into the workspace. The in-signal is the pressure and the out signal should be the temperature, when i open the logic block im not able to connect the table to the block. I read the help inside simulink but cant find the solution for this simple 1 d lookup table. The table contains also other colums i need in 3 other lookup tables