$ sh /opt/conversationmodder/conversation_modder.sh
[/home/user/MyDocs/niqbal_conv-ui_theme1.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.
note:  /home/user/MyDocs/niqbal_conv-ui_theme1.zip may be a plain executable, not an archive
unzip:  cannot find zipfile directory in one of /home/user/MyDocs/niqbal_conv-ui_theme1.zip or
        /home/user/MyDocs/niqbal_conv-ui_theme1.zip.zip, and cannot find /home/user/MyDocs/niqbal_conv-ui_theme1.zip.ZIP, period.