Revit to Excel and Back with control


I know there are tones of topics on how to export data from revit to Excel and also importing back from excel to revit.
My question is, is there anyway we could have a single graph that could export data to excel, and after user updated data in excel, import them back to revit.
How would you control which part is been done?


I think I found my answer, putting a “Transaction.End” node after write to file seems to do the job.