ello, Is there a way to filter data based on the time-elapsed with PI-Excel interface. For example, I have data on PI for 1 hour and I want to find the maximum value of this data. However, I want the program to ignore transient values, that is values that only last for 2 seconds. If I could filter those transient values (that is values greater than 2 seconds), I would then want to find the maximum of these values. Please help out! Your help would be greatly appreciated.