Go to Tools -> Import and Exports -> Kits
The file has the following columns:
kit: Contains the name of a previously defined NON-INVENTOWRIED PRODUCT which is the kit you are selling to customers(i.e. the product does not have a related part number)
part_number: Contains the part number of a previously defined INVENTORIED PRODUCT and it is part of the kit
quantity: Contains the quantity of the part in each kit
measurement_unit: Contains the name of the measurement unit
product_or_service_name: Optional. Not yet used. This field will be used to bundle services with products (i.e. bicycle with road safety course)
Remember to delete the description rows in the file.