The ESRI Shape format is a vector format created by the Environmental System Research Institute. The SHP file can support point, multi-point, polygon, polyline and multi-patches. This file format has a much faster drawing speed and more editing capabilities than other data sources. It is supported by the ARC Explorer 2.0 and ARCView.
This file format contains three files:
Main file: *.shp
Index file: *.shx
DBase file: *.dbf
The default extension used by this format is: SHP.
This file format does not support layers, grouping objects, or embedded raster objects. 
Blaze ImgConvert can load the following objects: PolyLine, Point, Polygon, Multi Point, and Multi patch.
For SHP files, you can read and write the following bits per pixel: 24.