Converting MSCZ to MIDI is rarely "perfect" out of the box. MIDI is a performance protocol, while MSCZ is a notation protocol. Here is how to bridge the gap.
There are several websites available, but popular options include: convert mscz to midi
What if you are on a computer where you cannot install software, or you simply have one file you need to convert quickly? Online converters are a viable alternative, though they come with caveats. Converting MSCZ to MIDI is rarely "perfect" out of the box