你好：
我在哪里能够下载到各种各样的x3xml的分子结构图文件？目前除了软件自带的，我在网络不知道哪里能找到其他分子结构图文件，您能推荐一些下载网站或者网友分享的论坛吗？
期待您的答复，谢谢。
Hello,
How can i download various c3xml (Chem3D xml file) file format of structure in you website?
I use a Chem3D trial version and want to download some c3xml (Chem3D xml file) file format of structure, but i don't know where to download c3xml file, could you share the website or forum where i can download it?