Develop interface program

I need you to develop some interface for me. I would like this interface to be developed for Windows . To auto extract and compare prices of “selected products” of different suppliers from online market place, Lazada. The “selected products” are coming from the user’s Excel spreadsheet that include a “benchmark supplier” column. “Benchmark supplier” is an existing supplier in Lazada. Produce a report highlighting prices of suppliers that are lower than the “benchmark supplier” prices.