- Go to Extensions > Installer
- Upload average-customer-yearly-x.x.x.ocmod.zip
- Go to Extensions > Extensions
- Choose Reports from the dropdown list
- Find Average Customer Sales (Yearly) in the list.
- Click on the Install button
- Click on the Edit button
- Enable the Extension and click on the Save button
- Go to Reports >Reports
- You will find Average Customer Sales (Yearly)