Good day! First of all, a question: what OS is on your computer? If Windows so, I can easily tell you the sequence of steps.
1. The level folders are in the archive. You must first unzip them.
2. Then put them in the game at this address "FPV Freerider Recharged\FPVFreerider_Recharged_Data"
3. Launch the game.
4. Click Level Editor
5. Click Level
6. Click Load
7. Click on the line of the desired level
8. And finally, click Play