Excel workbook copy protection tool, compiles XLS into EXE (which requires MS Excel to run) with securely hidden formulas and VBA code. Main features: copy protection for Excel workbook with regkey/license from illegal copying; securely hide formulas by converting them into binary format; protect VBA code; create trial/demo version of Excel workbook with usage period limited by amount of days; custom splash screen; details at http://DoneEx.com