: Every extended M3U must start with #EXTM3U on the first line.
: Each stream typically starts with #EXTINF: , followed by metadata (like the channel name) and then the URL on the next line. Download LIST1 m3u
As the file hit 100%, Leo didn't immediately open VLC. Instead, he right-clicked the file and chose "Open with Notepad++." He wanted to see the raw bones of the thing. : Every extended M3U must start with #EXTM3U