If you want to play m3u8 files, there are two ways:
1、 With the help of m3u8 web player, just copy and paste your m3u8 file address into the player to play. for example: https://www.lantianye3.top/
2、 Download the VLC player, click media > open network streaming > network, paste your m3u8 address and click play. For local files, open the file directly with VLC player and play it.