Use a program like WinRAR or 7-Zip to extract the downloaded pack. You will find a folder or several files inside. These files (often with a .cpk extension) need to be moved into the "Data" subfolder of your PES 2019 main directory. So, you will copy the files to: C:\Program Files (x86)\Steam\steamapps\common\PRO EVOLUTION SOCCER 2019\Data\ .
This is the most critical step.
If you are using Steam, the default path is usually: C:\Program Files (x86)\Steam\steamapps\common\Pro Evolution Soccer 2019\Data pes 2019 arabic commentary pc
The audio file is corrupted or conflicts with an existing patch. Use a program like WinRAR or 7-Zip to