https://communities.bentley.com/products/geospatial/desktop/f/bentley-map-forum/102179/hec-ras-floating-point-grid-fltI am wanting to do a floodplain study in HEC-RAS using the new RAS Mapper extension. Unfortunately to do so, you have to have your terrain data in a .flt (floating-point grid) format. Can Bentley Map, Microstation, or Geopk generate a terrain file likeen-USTelligent Community 12https://communities.bentley.com/thread/304411?ContentTypeID=1Thu, 30 Oct 2014 14:16:10 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:33649456-1478-4f17-a312-57f5df346945Pascal CloutierHi Matthew,<br /> <br /> I don&#39;t know about Geopak. But, I can tell you that MicroStation, Descartes and Bentley Map do not have the capability to read or create files in the .flt format.<br /> <br /> Pascal<div style="clear:both;"></div>