Simple fuction for API of Mercado Livre

Hello I need a system where i can put the item ID and the link of the pictures, then the system must automaticaly remove the currently pictures of this items and upload the new pictures wich I have informed on the system. The system need be able to accept to many items IDs and links at the same time. I have a excel spreadsheet with all my items IDs, i would like to copy this items ID from the excell spreadsheet and to paste on the system and use the same pictures' URL's to all this Items. You can use your favorite language code. The system must work on desktop as a software (not on a host) and you need to delivery it as soon as possible. API Documentation of account authentication (I'm not sure if you need to use it): [login to view URL] API Documentation of Itens Fields (Picture): [login to view URL]