File Menu Various types of I/O live on this menu, as well as printing. Read ... Read specified files in to the current session. This allows colors, glyphs and lines to be changed on the fly. Save (extend current file set) ... Write specified files as part of the current set of files -- or rename the files as you wish. Save (create new file set) ... Generate a new set of xgobi files: You would use this panel particularly in order to save a subset of the data, specifying rows or columns.