How to convert an object into a string in esb mule?


I am working with Mule ESB and our goal is to use dropbox as a end point connector means to store data to dropbox(from CSV/doc or any other data source). We are able to store data to drop box but data stored in the form of object and that is not in readable format so how to convert object to string so that it can be in readable format ?

Mule already has Object to String transformer to transform String from Object :-