how to use a downloaded version of windows 7

I bought windows 7 online and downloaded two .box files and one .exe files. Is there any way to install this on parallels 7?

 

The exe extracts the contents from the box files, needless to say the exe requires Windows to run. You can make a DVD (image) using these instructions: http://www.tomshardware.com/forum/1392-63-windows-upgrade-bootable-guide-having-issues