ArcMap is run using primarily Shape Files and in more recent versions Geodatabases can be used to store larger sets of data. These file formats are what are uploaded into the program to view spatial data.
Edema is swelling of both legs from a buildup of extra fluid. Prolonged standing or sitting, especially in hot weather, can cause excess fluid to accumulate in the feet, ankles and lower legs. Tiny valves inside the veins of the legs can become weakened, causing a common problem called venous insufficiency.
Left leg swelling may be the result of a leg injury. Leg swelling that occurs following an amputation should be reported to a doctor immediately. Applying an ice pack can help treat swelling. A blood clot is a potentially serious condition that can cause leg swelling.