I am new to Microstation V8i SS2.

I have tried to export a dgn's level list to a *.csv file but do not get the levels as I would expect consistently.  My workflow is to select Level Manager->Levels->Export.  But inside the *.csv file, it shows  per attached image.  Some of the seed files I have exported levels from, work fine using the above workflow, but not always, as mentioned above.  What am I doing that sometimes allows me to export levels and sometimes not?