Convert XKR to MP4

Converting Sing Magic Karaoke Song Format directly to MPEG-4 Videos (.xkr to .mp4 conversion) doesn't seem possible, as the XKR file format is proprietary to Sing-Magic Karaoke and cannot be converted to any other media format.

We are not aware of any media editing software or (online) conversion tool capable converting XKR to MP4.

In a word, direct xkr to mp4 conversion is not possible.
So don't expect any so-called xkr to mp4 converter or xkr to mp4 free online conversion tool available.