You have the option to download your screener backtest results from the 'My Backtests' section.
Upon accessing the backtest section, you'll find all screener backtest results readily available.
You can access the backtest result for the chosen screener by selecting a date as shown below.
Once a backtest is chosen, an option to download the detailed results will appear in the bottom right corner of the page, as depicted below.
You can download the backtest result in CSV format.