GeoPackage (GKPG) is an open, standards-based, data format as is defined by the Open Geospatial Consortium (OGC). It is designed to be a lightweight format that can contain large amounts of varied and complex data in a single, easy-to-distribute and ready-to-use file. GeoPackage offers users the following benefits:

• The single file is easy to transfer and offers the end-user a rich experience.

• Attribute names are not limited in length, making the format user-friendly.

• The file size limit is very large at 140 TB*, so lots of data can be easily accommodated.

• It supports raster, vector and database formats, making it a highly versatile solution.

List of layers

The following subsections describe the content of the Shapefile, TAB and GKPG supply.

The TAB format (MapInfo tables) is the native format of MapInfo. This format can be read into most GIS packages. The TAB format consists of two files for tabular information, similar to a spreadsheet, and two files for geographic display. All four files are needed to display the geometry and attributes of geographically reference features. The four specific file extensions needed to display the geometry are as follows:

.dat: The dBASE file that stores the attribute information of features.

.id: The file that stores the index of the feature geometry to the attribute table.

.map: The file that stores the geographic information to display each feature.

.tab: The file that links the above three files and holds information about the dataset.

List of layers

Esri shapefiles are a simple, non-topological format for storing the geometric location and attribute information of geographic features. A shapefile is one of the spatial data formats that you can work with in ArcGIS.

The shapefile format defines the geometry and attributes of geographically referenced features in as many as five files with specific file extensions that should be stored in the same project workspace. The file extensions are as follows:

.shp: The file that stores the feature geometry.

.shx: The file that stores the index of the feature geometry.

.dbf: The dBASE file that stores the attribute information of features. When a shapefile is added as a theme to a view, this file is displayed as a feature table.

.sbn and .sbx: The files that store the spatial index of the features. These two files only exist if you perform theme-on-theme selection, spatial joins or create an index on a theme's SHAPE field.

.prj: The file that stores the projection information.

List of layers