id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
en-wikipedia-org-5986		Shapefile - Wikipedia			.html	text/html	2393	285	70	It is developed and regulated by Esri as a mostly open specification for data interoperability among Esri and other GIS software products.[1] The shapefile format can spatially describe vector features: points, lines, and polygons, representing, for example, water wells, rivers, and lakes. The shapefile format stores the data as primitive geometric shapes like points, lines, and polygons. .shp — shape format; the feature geometry itself {content-type: x-gis/x-shapefile} .shx — shape index format; a positional index of the feature geometry to allow seeking forwards and backwards quickly {content-type: x-gis/x-shapefile} .mxs — a geocoding index for read-write datasets (ODB format) {content-type: x-gis/x-shapefile} While the current dBase standard, and GDAL/OGR (the main open source software library for reading and writing shapefile format datasets) support null values, ESRI software represents these values as zeros — a very serious issue for analyzing quantitative data, as it may skew representation and statistics if null quantities are represented as zero	./cache/en-wikipedia-org-5986.html	./txt/en-wikipedia-org-5986.txt