To export your report in either a PDF, Powerpoint or an Excel-file, click the "Export"-button in the top right corner of your project.
When you click the "Export"-button, this will appear:
Your report will be ready shortly, it can take 10-15 minutes. It's advantageous to use either Mozilla FireFox or Google Chrome, when exporting reports.
If you want a bit more advanced report, you can choose to include "Traffic Quality" from AudienceReport. To do this, click on setting, and select "Include traffic quality metrics". Then, click the grey "export" button to export your project.