Problem

When importing a SOSI file, there are several points with missing Z-values (often written as zero). When importing it looks like this:

Solution

adjust the settings in the import task to ignore Z-values of "zero". by doing this the picture above can easily be changed to the example below.

Watch the attached video of how to change the settings. 

The video also shows the imported SOSI file. Then it shows how you can open a model with the correct coordinate system as described in the SOSI file. The video will then explain how you can import it and fix the missing Z-values.