Format error when exporting data to excel

[SeanP]

Take a look at the price of design script that gives GUID.

Looking to get the GUID of Revit Elements, as well as call for Revit elements with GUID

I’m looking to test out a .DYN that will receive a list of GUIDs and then select those Revit model elements. I currently have a test project set up with three pieces of MEP Fabrication Pipework geometry. I am looking to retrieve the GUID from these three pieces of geometry to use for testing. I continue to receive an “Unhandled Exception Error” Message, I am not sure as to why Here is my DYN so far [Test_]