If SaveTestListAs is specified, then at the end of a script run the visible contents of the Results Window are saved as a CSV file. If the file already exists, it will be overwritten without confirmation.
This is equivalent to manually selecting Save List as CSV File from the Results Menu after the test or optimization run finishes.
The purpose of this setting is to facilitate automation of optimization runs with summary stats saved in CSV format for external processing.
To automatically save the detailed stats from a single test to CSV, use SaveStatsAs.