Cambridge Exams Extra – PET is a program developed by Cambridge University Press. The main program executable is PET-Extra PC.exe. The setup package is about 26.07 MB (27,339,674 bytes) when donwloaded. In comparison to the total number of users, most PCs are running the OS Windows 7 (SP1) as well as Windows 8. While about 50% of users of Cambridge Exams Extra – PET come from the United States, it is also popular in Italy and CY.