unzip故障

1、无法解压zip文件？

[root@zcl-test1 html]# unzip opensns.zip 
Archive:  opensns.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 opensns.zip or
        opensns.zip.zip, and cannot find opensns.zip.ZIP, period.

原因分析：zip文件来历不明；在Windows解压后压缩远程上传Linux服务器并不能解压成功；使用7z也不能解压成功。

解决方法：在windows本地解压成功后，直接上传即可。