How to save specific data from response data to csv file

Question

In my webservices test plan, I am sending SOAP request to create user and it sends back username and unique id in the response data. I want to save that username and uniqueid in

Answer 1

I used this for save a number to a csv: thanks Nachiket Kate.

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folio = vars.get("folioGuardado");    
f = new FileOutputStream("C:/GuardFolios/folios.csv", true);
p = new PrintStream(f); 
this.interpreter.setOut(p); 
print(folio);
f.close();