method please extract the zip folder. you extract the zip folder, for example by clicking on it with the right mouse click on windows. then you choose the function extract out. the zip folder will now be unpacked and you can use and complete the certificate. Fill in the questions!!! Please attach this certificate as your advice, and or also send us the completed certificate of your product or layout to be analyzed in advance to clarify individual questions via one of the methods of ,,,,,,,,,,,,, upload adress...your certificate for a product .......to.