Select or use a tool like WinRAR to unzip the contents.
If your model is connected to the internet, you can check for updates directly: Driver / SoftWare Downloads | Sharp Digital MFPs / Printers Download SHARP 32DH520E Software rar
Go to or Option (depending on your firmware version). Select Software Update and press ENTER . Confirm the Update : Select or use a tool like WinRAR to unzip the contents