I have installed office 2013 to test for 60 days. 

But I cannot open anything because I do not have the key of the product. 

It says that I will receive by email, but it did not happen. 

What should I do?

Hi,

Where did you download the trial version of Office 2013? TechNet Evaluation Center or other website?

As far as I know, we'll get the key from the webpage directly, not need to receive by email.

Please try this website: https://www.microsoft.com/en-us/evalcenter/evaluate-office-professional-plus-2013

Hope it's helpful.

Regards,

George Zhao
TechNet Community Support