Global Mapper
Global Mapper is a geographic information system (GIS) software package currently developed by Blue Marble Geographics that runs on Microsoft Windows. The GIS software competes with ESRI, GeoMedia, Manifold System, and MapInfo GIS products. Global Mapper handles both vector, raster, and elevation data, and provides viewing, conversion, and other general GIS features. It is most notably known for its support of over 300 different file formats ranging from .laz to Geotiffs. Global Mapper has an active user community with a mailing list and online forums.