unzip art_30.zip
Archive: art_30.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.
unzip: cannot find zipfile directory in one of art_30.zip or
art_30.zip.zip, and cannot find art_30.zip.ZIP, period.
unzip art_30.zip Archive: art_30.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. unzip: cannot find zipfile directory in one of art_30.zip or art_30.zip.zip, and cannot find art_30.zip.ZIP, period.