The well-known binary (WKB) representation for OGC geometry. It provides a portable representation of a geometry value as a contiguous stream of bytes. The well-known text (WKT) representation for OGC geometry. It provides a portable representation of a geometry value as a text string. The esri JSON string representing the geometry.
Here is a simple usage example from the python window:
from arcpy import daYou'll see all three types print out. The print out doesn't really mean anything except to show the various string formats that a coder can now export the geometry object into. It will also make exporting geometries to something like a TAB or Excel table a bit more practical. I would stay away from csv, since many of these formats use the ',' (comma) to separate the points.
with da.SearchCursor("Counties", ["SHAPE@JSON", "SHAPE@WKT", "SHAPE@WKB"]) as rows:
for r in rows: