The name "Download File en (6).zip" typically suggests a file that has been downloaded multiple times (indicated by the (6) suffix added by your browser) or is part of a series of downloads.
: If you have 7-Zip installed, right-click and choose 7-Zip > Extract here or Extract to "Download File en (6)/" . On macOS
: Left-click the link. Your browser (like Google Chrome ) will typically prompt you to choose a save location.
: Right-click the Download File en (6).zip file and select Extract All... . Choose where you want the files to go and click Extract .