If you are looking for the EViews 13 installer, you can download the full installer directly from the official EViews site.
To help you download and use the specific files you're looking for, I've broken this down into the most likely interpretations of "EX(13)" and "Paper." Download EX(13) rar
Depending on what "EX(13)" refers to, here are the most likely sources: If you are looking for the EViews 13