Public .m3u links often "die" or expire quickly because the host servers reach capacity or are taken down. If the file doesn't load channels, the links inside it are likely inactive.
The most reliable way to open these files is using VLC Media Player . Simply drag and drop the file into the VLC window. Download File 24-03-tv_channels_ja1031098_plus.m3u
Look for the filename on IPTV discussion boards or Telegram channels where users share updated channel lists. Public