Hi, 

Just want to inform that I was very happy when I found out that LandXML files were possible to open in latest Surpac versions (Survey role). It saved my afternoon, as I was working with bridge project and contractor send survey model of rock excavation for base of bridge pylon in LandXML format. I was able to quickly compare excavation design model against excavated one. 
I'm interesting what type of data LandXML format in Surpac is supporting. I'm not too familiar with this format.