Software for marketplace research -- 2

I need a software or something like Chrome extension to get the number of search results on multiple keywords from a marketplace. Marketplace's customers usually search using keyword search. Each keyword returns a number of search results. This number I am interested in. I want to input in the software a large list (more than 1 Million) of keywords and to get the number of search results on each of these keywords. The output must be exportable to Excel where I can sort the data as I need.