In simple words, an M3U playlist is a link with a playlist that holds all the channels and content of an IPTV. Fraunhofer first developed this format for his native software, Winpla圓. It is a file format that allows users to watch content from a particular website.
M3U is a short abbreviation for Moving Picture Experts Group Audio Layer 3 Unifrom Resource Locator. Here are the popular M3U playlists based on categories and the number of channels. IPTV M3U Playlists to Watch 1000+ Channels Based on Categories
Here are some M3U links to watch the best IPTV channels based on the region.
List of Working Free IPTV M3U Playlists for Countries