It is important to clarify what this download actually entails, as "English Commentary" can mean two different things in the PES 2013 modding scene:
A: If you own a legitimate copy of PES 2013 (even a disc or Steam key), you are legally allowed to restore missing files. If you downloaded a cracked game, commentary files fall into a gray area, but they are generally tolerated in the modding community as they do not contain executable cracks. Pes 2013 English Commentary Download