Hello. I want to ask, if here is anyone, who could help me. I want to extract data from GIS (version 9.1) to HEC-RAS 3.1.3. I created all important parts of project as stream centerlines, bank lines, flou path centerlines andcross-sectional cut lines. (Ewerzthing was created by manual). As a last step I wanted to extract data to Hec Ras, but it dousent work. I have in my folder two files: one is *.xml, the other is *sdf, but they look empty (the xml format has only 118 kb, sdf format has 464 kb). Please, do anyone knou, where the mistake is?