I am Nancy, new to ArcGIS, and I appreciated anyone's help here!
When I was trying to import Coordinates from Excel into ArcMap, I followed the step from the help menu, it really helped. When it was finished, it shows on the map window (which is shown below). However, then when I add my map (Download from Digimap), it only showed the coordinates, not showing the map. And then I tried add map first, it showed on the map window properly, and then add coordinates, unfortunately, the coordinates are not showing on the map.
Firstly, I checked the coordinates system. They are the same using British National Grid for projected coordinates system and for Geographic coordinate system, GCS_OSGB_1936 are selected as default.
Then, I added data, coordinates and map many times, it gave me same results. It seems that the coordinates could not show on my map.
Thanks for helping!