I am an ArcGIS beginner.
I have a CD of GIS files of a city and intend to work on watershed management.
There are different file names in different formats on CD. Like .shp, .shx, .dbf, .sbx. and I have no idea which one to choose to start working on.
As there is a file named contour line (in all mentioned formats) I would guess I need to start with that one. I am not sure, though. I also found out that I should use Spatial Analyst Extension but in which step I do not know.
What are the main steps, and which file to start with to end up with a 3D file of watershed and its boundaries?