Are Exits and Overquota Data Captured?

Yes, Exit data and Overquota data are both captured within the Glow platform. 

By default, when you go to your Analyse dashboard for your project, the output type will be set to show Completes data only but you can change this to All Responses (which includes Completes, Exits, and Overquota data), Exits data only, or Overquota data only. 

To be able to download the csv data for that type of output, you will need to select which type of data you need in this menu. E.g. if you select Exits, then when you click on Export > Export as CSV, then only the exit data will appear in your CSV download. 

You can tell which type of response it is in the CSV data from Column B (Response Type)