OSM (OpenStreetMap) PBF files September 01, 2026 09:36 Updated Global Mapper supports the import of Open Street Map Protocolbuffer Binary Format (*.osm.pbf) files. This file type is reported to be smaller than the similar .xml file. Other OSM file types supported by Global Mapper include: *.OSM (import and export) *.OSM.XML (import and export)