There are two ways to find the quiz/survey you want to export results for
Option 1. The first way to find the quiz to export data from:
1) Open Activities in the sidebar
2) Search for the quiz/survey you want to export data from or use filters to find it
Option 2. The second option for finding the quiz/survey to export progress from:
1) Open the course/group the quiz/survey belongs to
2) Open the topic the quiz/survey belong to
3) Select the quiz/survey from the list of activities
To export the data press Download results after having opened the quiz:
From the Excel file that is downloaded you should see two tabs. One with collective information about the results and the other one provides more detailed list of the actual results and who is associated with each result if it was not an anonymous survey.