: Download and install a tool like 7-Zip (Windows) or The Unarchiver (macOS).
: Right-click "PJK22.7z" and select "Extract Here" or "Extract to PJK22/". PJK22.7z
If you are a developer looking to read the text programmatically, you can use libraries like py7zr for Python to decompress and read the data directly from the archive. : Download and install a tool like 7-Zip