A set of sample reports are included. These include both Layout Templates and Reports. They are designed to work with the sample database. If you want to trial these reports on your own project then select File > Open. From the drop-down select Browse and navigate to the folder where the samples are located:

The user will now see the sample reports and may open and run them against your project. You may also use the sample reports as the basis for your own custom reports, by opening a sample report, and then selecting File > Save As. You may rename and save the sample report, and then modify it to meet your own project needs.

Refer to Open an Existing Report and Save a Report for details.