sbx-The files that store the spatial index of the features. Attribute records in the dBASE file must be in the same order as records in the main file. There is a one-to-one relationship between geometry and attributes, which is based on record number. dbf-The dBASE table that stores the attribute information of features required. shx-The index file that stores the index of the feature geometry required. shp-The main file that stores the feature geometry required. The shapefile format defines the geometry and attributes of geographically referenced features in three or more files with specific file extensions that should be stored in the same project workspace. A shapefile is one of the spatial data formats that you can work with and edit in ArcGIS. Shapefiles are a simple, nontopological format for storing the geometric location and attribute information of geographic features.
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