Customized Bookmarklet Like Program

ATTENTION FREELANCERS: ONLY PROPOSALS FROM FREELANCERS THAT COMMIT TO PROVIDING A DEMO PRIOR TO AWARDING PROJECT WILL BE ACCEPTED. IF YOU DO NOT INCLUDE RATHER YOU WILL PRODUCE A DEMO I WILL ASSUME YOU DID NOT BOTHER TO READ AND I WILL NOT RESPOND TO YOU. Program Details & Features : I am seeking a freelancer to develop or create a stand alone program that has the functionality of a java-script based price bookmarklet that can grab product data such as price, title of product from any retailer site on the internet. There are online sources that provide this capability such as the pwul bookmarklet so I know this can be done. This program will not be a bookmarklet where you add it to your browsers bookmarks but this program will adopt its functionality. Program Details& Features B: There should be a place or location that can be paste into with unlimited urls visibly inside the mini script program and an option to upload a file containing urls so that the program can tag or grab the product data in bulk. Program Details& Features C: The program should display the extracted data and there should be an option within the program for it to be exported neatly and structurally into excel. This program should work on Windows 7 and higher. OTHER REQUIREMENTS: I do require a demo for proof of concept prior to work . I have been scammed out of $100 recently by a freelancer who passed off an dead on arrival application which was akin to an empty package. I paid an initial amount for him to start the work. There are also freelancers on here who some how are able to give themselves feedback by pretending to be customers to appear reliable and trustworthy.