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.