Hi @Marcel_Rijsmus I followed your advice which was very useful and i applied it for my job and it works perfectly…
Sorting rooms by “Room_Number_Parameter” before exporting to Excel was the problem. So, once i export the data to excel, then i sort the data within Excel by a specific column which is in my case “Column B” corresponding to my Room_Number.
You made my day guys @Marcel_Rijsmus & @jacob.small, thank you very much !
Here’s the screen shot of the graph
and also, the .dyn script if someone need it.
Export Dynamo to Excel using UniqueID.dyn (49.7 KB)