For attaching such a layer, we should find a GeoJSOn file containing country borders. In many cases, such a GeoJSON file is not available. Fortunately, there a way to produce a GeoJSON file by taking a shapefile produced by an ESRI-format-compatible tool. Personally, I found a shapefile that contains all country borders here:. Download World Country Cartographic Boundaries Shapefile You can extract the countries or features of other data using Crop Layer tool available in the map canvas itself or you extract the feature in your desktop QGIS software. Follow this link to learn how to extract features in QGIS. All data are updated periodically once in a quarter year. Jul 07, 2019 · The data comes from Natural Earth, a community effort to make visually pleasing, well-crafted maps with cartography or GIS software at small scale. The shape of the countries have two fields : name : the common name for the country. ISO3166-1-Alpha-3 : three letters iso code of the country. More info about countries can be get from datapackage .... The Data Catalog is designed to make World Bank's development data easy to find, download, use, and share. It includes data from the World Bank's microdata, finances and energy data platforms, as well as datasets from the open data catalog. Geographical Border Shapefiles. Outline Maps- -There are many sources of "shapefiles" which provide global, regional, national and sub-national outline maps onto which other data can be superimposed. A short selection of sources of this type of data are listed below. WORLD BANK-- The World Bank provides a range of country profile shapefile maps.