Hello! I've just tried the online LandXML Data Validator (a great tool!). It has helped a few times, but I can see that it misses to catch errors sometimes. The attached file has <ProfAlign> elements wihout any child elements. A clear violation of the specification, that states that <ProfAlign> has a xs:sequence with minOccurs=1 (default value). It is unfortunate that this is missed. Regards, Daniel Lidström, Software Developer SBG AB