Web Scraping from IE Selenium when download file and show promp

I want to web scraping and download files using python, selenium and Internet explorer. But this show me a promp with confirmation, How to confirm to save automatically or programtically?.

This downloading only works with IE, then I cannot change of explorer.

boton_download = driver.find_element_by_xpath("//tbody/tr[3]/td[2]/a[1]/img[1]")
boton_donwload.click()

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