Depending on what "EX(13)" refers to, here are the most likely sources:
Use the Shortcuts app to "Extract Archive" or download the Zip & RAR File Extractor. 2. Creating a Paper Download EX(13) rar
If you are looking for the EViews 13 installer, you can download the full installer directly from the official EViews site. Depending on what "EX(13)" refers to, here are