1853 OGR GFS File Text (Mark-up) The GFS file is used by the OGR Geography Markup Language reader to predefine dataset level information in the absense of an XML Schema definition for the feature classes within the GML file. Its purpose and syntax is described here: http://www.gdal.org/drv_gml.html 170 Archaeology Data Service / Archaeology Data Service 18 May 2017 18 May 2017 fmt/1048 PUID gfs File extension 1408 OGR GFS File BOF: <GMLFeatureClassList> EOF: </GMLFeatureClassList> 1 Absolute from BOF 0 0 3C474D4C46656174757265436C6173734C6973743E 1 Absolute from EOF 0 16 3C2F474D4C46656174757265436C6173734C6973743E