I need to use the Add Join tool but before I can do that I must get the csv file into ArcMap. Yet when I go to ArcCatalog to try to add the csv it is not there. Also I tried using simply the add data button but again the csv is absent. So how can i get the csv file to show up in ArcCatalog so I can begin the process with the Add Join tool?
Couple of things to try: Open the file in Excel; save a copy as a CSV. Open the file in notepad; save a copy as a CSV. Open the file in Excel; save a copy as a dbf. Open the file in notepad; save a copy as a dbf. Create a file geodatabase; import the file into the geodatabase, then add it to the map from the geodatabase.