The .SBX file is used by Esri ArcGIS Desktop GIS mapping software.
This file contains a spatial index for an .SHP shape file — a shapefile is a geospatial vector data format for geographical information software.
.sbx File
Extension
Developer:
ESRI
File category:
What are sbx files & how to open them - ESRI Spatial Index File
File category:
Developer:
ESRI