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....common GIS file formats. You can read and write vector GIS data... convert between GIS file formats, create and analyze feature...