June 13, 2019, 04:29:22 am
Your post here will be fine in the Guest section. We do have a much larger area for Support for registered licensed users covering importing questions.
You should consider Lumion an end-use tool. That is, there is no exporting of models imported into Lumion from other 3D modeling software. There are a number of reasons for this including that materials applied using the Lumion Library
may be under license and so cannot be re-used.
You would need to ask your client for the source model file.
I'm sorry we can't provide more help for you, but any other questions please feel free to ask.