Go to the Settings - Services. To add services, click on the category name folder. A new window will open, click on the Excel operations button and then select upload from Excel. Paste data from your Excel spreadsheet into the box and click on the Upload button.
In the new window that opens, match the data with the table headers: Name, Price from (minimum price), Price to (maximum price). Click on the Save button.
You can upload no more than 500 rows at one time.