The Load Resources - Review Loaded Resources page displays details about resources being imported from a Zip or other file, as documented in Loading Resources from a Zip File or Loading Resources from a URL.
Table 3-6 describes the options and controls on the page.
A Warning icon next to file name indicates that the resource type is unknown. (A file without an extension or one that does not have an extension defined in the map is considered unknown.) Files of unknown file types cannot be imported.