How to add play list file m3u?

How to add play list file m3u? by Url it works, but file no. Any ideas?

Thanks

Try to explain a bit more detailed what you are trying to achieve.
If you mean how to add a m3u file to your OSMC just copy it to your video location (could be either your device or a NAS) and you can access it via Videos - Files

It was a list of channels. I have done what he says and it works. Thank you.