如果在sharepoint站点上存在文件，是否可以通过VBA进行检查?

I'm trying to write an Excel (2010) macro that at some point would have to confirm existence of a certain file (doc/pdf) on a corporate sharepoint site. The file is accessible through Internet Explorer (all rights are granted to the user). I have a direct link to that file. I don't need to open it, just check if it's there.I'm trying to write an Excel (2010) macro that