@RajeshT Are you converting the CSV file to Excel by Reading CSV File getting the Datatable and writing that Datatable to Excel File using Write Range Activity?
If you are converting in that way, then After reading the Csv file, Change the Column Datatype to System.Double using the Change Column Datatype Activity.
Then Write that Datatable to Excel using Write Range, The Green Color Quotes should be removed.
I am reading CSV file from Excel application scope ,and writing in to datatable using write range activity .In this way i am getting green color quotes.