saveCSV(file, data, [delimiter])
Encodes a CSV-object array to multi-line strings and saves it to a CSV file. If the given file exists it gets overridden.
Type: function
Parameter(s):
- file {String | File}:The file name or a File instance. 
- data {Object}:The object to encode and save in the file. 
- delimiter {String} Optional:optional character[s] used to separate data. 
Returns:
- 
    {File}:
 The CSV file the data was written to.