It may be your antivirus recognized as a threat and remove it or the browser
I have issues unzipping the file too. I think something might be wrong with the archive you provided. :(
Archive: Melano.zip
End-of-central-directory signature not found. Either this file is not
a zipfile, or it constitutes one disk of a multi-part archive. In the
latter case the central directory and zipfile comment will be found on
the last disk(s) of this archive.