ArcGIS: https://www.youtube.com/watch?v=1hX7cB8rbB8
https://desktop.arcgis.com/es/arcmap/10.5/tools/data-management-toolbox/add-join.htm
QGIS: https://www.youtube.com/watch?v=BwDBhdiPer0
http://www.geomapik.com/analisis-gis/join-qgis-unir-tablas-importar-atributos/