WRITEFIS Save a FIS to disk. WRITEFIS(FISMAT) brings up a dialog box to assist with the naming and directory location of the file. WRITEFIS(FISMAT,'filename') writes a FIS file corresponding to the FIS matrix FISMAT to a disk file called 'filename'. No dialog box is used and the file is saved to the current directory. WRITEFIS(FISMAT,'filename','dialog') brings up a dialog box with the default name filename.fis supplied. The extension .fis is only added to filename if it is not already included in the name. See also READFIS.