: If you prefer using your system’s default player, you may need to install the K-Lite Codec Pack or CCCP to add MKV support. 2. How to Edit or Import into Video Editors

Many professional video editors (like Adobe Premiere Pro) have historically struggled with MKV files.

Because MKV is a "container" that can hold multiple audio, video, and subtitle tracks, it isn't always supported natively by default system players like QuickTime or older versions of Windows Media Player.