You generally add \r or \n to break a line. To add three breaks at the end of a string, do MyString += "\r\r\r". Is that what you're after?
Thanks for your reply peter.
I got the answer. the answer is:
if myString = "Ram\nKumar" then the output will ram & kumar in a seperate cells.
if it is in the format of myString = "\"Ram\nKumar\"" thenit comes in the single cell.