Why can't Skyworth Health cloud tv 49e360e play movies? The displayed text is not supported.

If you are playing a locally saved movie (USB flash drive, mobile hard disk, LAN resources), the displayed text is not supported and the file name may be wrong. On the computer, please set the file organization mode to display the file extension, browse to the file and see if there is any problem with the extension, such as abc.mkv.txt If there is, remove the redundant extension and change it to abc.mkv, and then play it on TV.