Your best approach is to convert the MKV into a MP4, a file format which runs in almost all players. In this article we offer three simple methods to convert an MKV file into an MP4. Method 1 ...

For example, you could have a device that can only play MP4 videos, and not MKV. To be able to watch your MKV file, you have to know how to convert MKV to MP4 file format.

When it comes to converting file extensions on your iPhone, don't worry about downloading a third-party app when you can make the changes yourself.

2] Try a free online tool to convert a GIF to MP4 There are multiple dedicated free online tools that can also be used for converting a GIF file to an MP4 video format.

Click convert, then wait. Finally, you’ll be shown your converted file then click download to save it wherever you want. That’s how to convert Content Warning ‘s WebM files to MP4.