I have starting and ending coordinates (UTM) of my lines. Also I have squares (50kmx50km) as a kmz file. I need to check which lines located in which squares. I hope, the lines are designed in such a way that they do not intersect two or more squares so maybe just ending or starting points can be used. I have 50-60 squares and more than 1000 lines. I use ArcGIS Pro and ArcMap.