Apps like IPTV Smarters or TiviMate are popular for Android and smart TVs.

You can open .m3u files using various media players across different platforms:

Many IPTV players are available on the Apple App Store and Google Play Store . Finding and Using Playlists

g., music vs. live TV) or do you need help a link that isn't loading? How to Configure IPTV M3U on Any Streaming Device

VLC Media Player (highly recommended for its versatility), Winamp , and iTunes .

Each entry in the file contains a path or URL to a media file. Most modern versions use Extended M3U , which includes metadata like the song title, artist, or channel name, identified by the header #EXTM3U .

Crafting the Perfect m3u Playlist: A Step-by-Step Tutorial - plume.com