Accessing this file via Safe Mode (Power + PS Button + R) is the standard way to unbrick a device stuck in a boot loop. Critical Precautions

Are you trying to a specific firmware version, or are you troubleshooting a corrupted system ? PUP PlayStation 3 File Format - Online converter

(PS TV). If you are looking for a "deep review," it is likely in the context of custom firmware (CFW) and console modding, where this file is central to the installation process.