Hello, I am a new user and have a big problem moving the data to and from ArcGIS. I have a layer with an attribute table so that the each FID is related to a specific polygon. I also have an Excel table with the same number of rows and some extra data for the each FID. My plan is to add this data to the attribute table so that eventually I create a map showing the distribution of this data. Sounds simple, but copy & paste does not work, and for some reason I can't link the two tables by the FID column. Could you help please?