Go to Home Tab > Level Display > View Display change to Global Display:
Go to Analyze Tab > Reports > New Category > enter the name (in my file “Reference”) > New report definition > (in my file “Layers on”) > set the values in Properties on the right side as shown below (Include Reference Attachments - Yes; Item Types – Levels ; Filtered By – Global Display = On) > add Name and Global Display Columns > Preview results > Export results if you are satisfied
Note 1: if you have more than one reference in your file and want to create Levels Report including layers only from one specific reference file - before you run the report, turn the other references Display off.
Note 2: if in the active file, as well as in the file that you attach as reference, you have the same layers turned off, you can generate directly from the reference file a layer report - then instead of Location - Active Model, select the reference file location. Then you will not have to turn off the display of individual attached reference files in the active file (as described in note 1).