Export-data-to-a-file

There's also a TimeSeries.WriteToFile function that will write an ASCII formatted file to disk.

CODE:
      public override void Initialize(BarHistory bars)
      {
         RSI rsi = RSI.Series(bars.Close, 14);
         PlotIndicator(rsi); 
         
         //Write RSI data to a file
         string fileName = System.IO.Path.Join(WLHost.Instance.DataFolder, "RSIData.txt");
         rsi.WriteToFile(fileName);         
      }

BarHistory also has a similar function, but it writes a WL binary file, which can only be read by the BarHistory read function. A third-party application would have to know how to read that binary file to read it in. I'm not sure if there's an option for BarHistory to write an ASCII formatted file (like TimeSeries has).