The Consultant represents and warrants that, except to the extent③ expressly agreed by the parties in writing: (i) no third party software or other Technology has been provided to the University, and (ii) any individuals performing work on behalf of the Consultant under this Agreement are employees of the Consultant, and not independent contractors.这句话中的except to the extent是except to是一个短语还是to the extent是一个短语？to the extent不是"到…程度""的意思做状语吗？后面可以加任何修饰名词成分对不？to the extent that加从句，是引导的定语从句？还是什么类型的状语从句？