Select and download free geographic (GIS) data for any country in the world Sources Formats The files have been compressed and grouped in ZIP files. You can use programs such as 7-zip, PKZIP or StuffIt to decompress the files. Vector data are stored as ESRI shapefiles Grid (raster) data are stored as DIVA gridfiles Each "shapefile" consist of at least three actual files. Gridfiles are used in DIVA-GIS. A gridfile with "country mask" indicates that the areas outside the selected country are masked out. A DBF (dBase file) is a dbase format database table. Resolution The resolution is the size of each grid cell expressed as the length of one side of one (square) cell.
