How does Xwiki describe a file path? There is a convention for referring to attached files on other pages, or in other Spaces. For instance, in http://mondego.calit2.uci.edu:7000/xwiki/bin/view/Help/Charts there is an attached file called "sample.xls" that is referred to in the Excel chart example as "source=type:excel; file:sample.xls; sheet:1; range:A1-C10" Seems easy until you try to recreate this chart in the Sandbox, and have to refer to path and file. It must be something like "file:WebHome.Help.Charts.sample.xls;" (which I deduced by studying results from Search) but there is something I am missing, possibly because the URL for the sample.xls file is not in http://mondego.calit2.uci.edu:7000/xwiki/bin/view/Help/Charts where you actually use it as a local file, but instead it appears to be in http://mondego.calit2.uci.edu:7000/xwiki/bin/download/Help/Charts/sample.xls for which there is no "space" name. Help!