Additionally, you can replace the cover art graphics or add new ones, as well as define a renaming template that should be applied to all videos and audio tracks. You just need to add the items you are interested in, then edit the tags for each file. You should keep in mind that both video and audio files are supported, so you can also process MKA, MKS and MK3D formats. The first step you need to take is to browse to the folder where your MKV files are stored. MKV Tag Editor is a user-friendly solution for all those who want to modify the tags of their Matroska container files.