how to open isz file on windows
ISZ File Opener. Download Â». The fastest and easiest way to open your ISZ file is to double-click it. This allows the intelligence of Windows to decide the correct software application to open your ISZ file.In the case that your ISZ file doesn't open, it is highly likely that you do not have the correct software application installed on your PC to view or edit ISZ file extensions.f your PC opens the ISZ file, but it's the wrong application, you'll need to change your Windows registry file association settings. In other words, Windows is associating ISZ file extensions with the wrong software program.