You may have to add questions and answers in your survey with long descriptions which become difficult to capture in the reports (dashboard and raw data exported in Excel or CSV format). With the help of report label you can add a short description to such questions and answers making it easy to capture in reports.
You can add report labels from either settings or compact view. To add report label from settings:
In place of long description of the question, the short description defined under report label is displayed on the dashboard and export data.