Add the user to the SiteID-Secure group.  The Secure Files Folder is a sub-folder set existing within the Files Folder and can be accessed once you have logged into the Files Folder (BB172995).  When exporting a file in your hosted application, select the secure folder location of the product (i.e. The Raiser's Edge, Education Edge, or The Financial Edge) [Product]_SEC (i.e. RE_SEC) to save the desired item in the secure section of the Files Folder.