the Simplified Chinese language,a little better than current language file(direct translation zh_tw file),reference zh_tw
[attachment=26:Simplified_Chinese.zip]
Did you look at lang/zh-cn.php (formerly lang/cn.php)?
看来这个是你翻译的了，我还是说中文得了，英文太差劲，
No, I’m not a translator. If I understand you correctly, you believe there are some translation errors. If so, please direct your bug report to translations@piwik.org.
Thank you.