Xic supports the xdnd and Motif drag and drop protocols. One is able to drag files from many file manager programs into the main window of Xic, and that file will be loaded into Xic. The File Selection panel from the Open button in the File Menu, and the Files Listing pop-up from the Files List button in the File Menu, participate in the protocols as sources and receivers. The text editor and mail client pop-ups, among others, are drag receivers.
The file must be a standard file on the same machine. If it is from a tar file, or on a different machine, first drag it to the desktop or to a directory, then into Xic. The GNOME gmc file manager allows one to view the contents of tar files, etc. as a ``virtual file system''. Window Maker and Enlightenment window managers, at least, are drag/drop aware.