Hello everybody!
I’m trying to create Levels by elevation and Names,
The names and elevation values come from excel file, but I just can’t find a way to create them.
The Funny this is that, if I create the same lists with the same values from a code block the node works perfectly.
Don’t Kown what could be wrong!!!
Please check the images.
Can anyone please help.
Revit 2016_r2, dynamo 1.3.0


This is a stings vs numbers issue by the look of it. Wire a Object.Type node into the excel data, watch it, and you’ll likely see everything says it is a System.String value. If so use a String.ToNumber node to convert the data to a number format, and use the Object.Type node to confirm the values change to System.Int32 (when whole numbers) or System.Double (when decimal values) data types.
Yes! It did solved the problem! 
Thanks!!!