public String getCsvSeparator() {
		String csvSeparator = getControllerProperties().getProperty(PROP_CONTROLLER_CSV_SEPARATOR);
		if (("tab").equals(csvSeparator)) {
			csvSeparator = "\t";
		} else if (("semicolon").equals(csvSeparator)) {
			csvSeparator = ";";
		} else {
			csvSeparator = ",";
		}

		return csvSeparator;
	}
Get Csv Separator.
default csvSeparator Value is comma

@return String csvSeparator
ngrinder-controller/src/main/java/org/ngrinder/infra/config/Config.java