FamilyInstance.ByCoordinates and an Excel table

Hi there,
I am new to Dynamo and Im apologizing if the question is stupid. I have an excel table with XYZ coordinates and I want to place a family on every point but all objects are on one place. Can somebody explain why and give a solution? Thats the screenshot from dynamo and the result.
Thanks for the help!

my guess is units


It works now. I tried with millimeters before and there was no result, but nevermind. Now everything is okay. Thanks a lot!