I have 3 columns in one sheet, The first one is a date formated (mm,dd,yyyy), the second one is an output column, and the third one is the input. I wanted to create a formula that will select whatever is in the third column as the input and if column 1 is 1 year less or 2 years after a date that is located in another ceel (different sheet), to say something like "Do this year". Could you advise in how to get started, I wrote something but even I looking at it does not make much sense.