The .txt file lists pairs of data: http://portal-address.com and a corresponding 00:1A:79:XX:XX:XX MAC address.

These files are often "fresh," meaning they are cracked or leaked accounts. They frequently stop working within days or hours.

The IPTV server checks if the provided MAC address is authorized. If it is (and the portal is active), the service loads the channel list. ⚠️ Security & Legal Risks (Important)

The user opens STB Emulator , enters the "Portal URL" from the file into the app's settings, and sets the "STB MAC Address" to the one provided.