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.
Swollen feet is a condition where the muscles in the feet have an excessive buildup of fluid. This buildup can lead to a rapid increase in weight over a short period of time. Slight swelling of the lower legs commonly occurs in warm summer months.