Create a cross-reference to a file or website
You can insert a cross-reference that creates a link to websites,
remote systems, FTP sites, or local files outside the Content Store. You
create a cross-reference by inserting an <xref>
element.
When you link to files outside the repository, you may use either absolute or relative pathnames. However, keep in mind that setups vary in different machines. When you specify the path for your cross-referenced file, make sure that the path makes sense with regard to the machine (and the local network) where the files will be installed.
To create a link to a file or website: