Lasse
This is not a LandXML just an XML format that is local to Denmark. There is no support for it in TBC. If you can find someone to write TMLs this would be a perfect example of where a TML to Import / Export this format would cover your requirement and is exactly why TML capability was created in TBC.
The global challenge that we have as a company is to be able to react to all of these international variants of data that people want in every country of the world. Finding a Python programmer locally would be the way to go here to solve this problem. I wish that I could help you out on this but I don't see any likelihood that I can get this done internally any time soon unfortunately.
There are people out there in USA / Europe that may do this for you for a fee - here are some contacts that may be able to help you
Peter Kistler - peter@thekistlers.com (He is based in Colorado, USA)
Wyn Sleeman - wyn@sleemanuk.org (He is based in the UK)
Fernando Calvo - calvo@calvo-geospatial.com (He is based in Germany)
There are likely others out there that may be able to do this as a service for you - please post here if you are able to offer TML programming services to the TBC customer base or SITECH dealer Channel.
Thanks
Alan