Apache Spark User List - output tuples in CSV format

My output is a set of tuples and when I output it using saveAsTextFile, my file looks as follows: (field1_tup1, field2_tup1, field3_tup1,...) (field1_tup2, field2_tup2, field3_tup2,...) In Spark. is there some way I can simply have it output in CSV format as follows (i.e. without the parentheses): field1_tup1, field2_tup1, field3_tup1,... field1_tup2, field2_tup2, field3_tup2,... I could write a s