The Esri shapefile or simply a shapefile is a popular geospatial vector data format for geographic information systems (GIS) software. Questions about shapefiles are best asked on the GIS Stack Exchange.
For questions about shapefiles it is recommended that you research/ask at the GIS Stack Exchange.
Excerpt from Wikipedia:
The Esri Shapefile or simply a shapefile is a popular geospatial vector data format for geographic information systems software. It is developed and regulated by Esri as a (mostly) open specification for data interoperability among Esri and other software products.
Shapefiles spatially describe geometries: points, polylines, and polygons. Each item may also have attributes that describe the items.
A "shapefile" is actually a set of several files. Three individual files are mandatory to store the core data that comprises a shapefile: .shp
, .shx
, .dbf