GIS C#.NET Library or API supports formats Shapefile, GeoJSON, FileGDB, GML, KML, SVG, PostGis, Sql Server, GeoTIFF. It can read, write, convert and visualize vector Data, manipulate geometries, perform analysis and lookup spatial reference systems by SRID....of features for working with data stored in common GIS file formats...can read and write vector GIS data, convert between GIS file formats...