You can load Quattro pro to Windows 8 by first downloading and then installing it. You need to click on the "Control panel" on the settings menu and then select "Add program". Locate Quattro Pro and click "Run from my computer" so as to install it. If still there is a problem loading, turn off your device and then turn it on and retry or contact the Microsoft Office customer service for more help. Read more details at http://office.microsoft.com/en-us/excel-help/opening-quattro-pro-files-in-excel-HA001044873.aspx.