I have started using ArcMap 10.6 and need to create a heat map of point counts over the country. I am able to draw the fishnet over a smaller test area. What tool do I need to use to fill in the fishnet squares with graduated colors of point counts? I have tried numerous examples from google but they have not worked. My data set consists of only Lat/Long pairs in a file. I have converted these to shape files.
I attached a small screen cap of what I am trying.