Can anyone help convert this into two hand piano part?

Alright so I found this really cool MIDI arrangement of Piano Man for the piano. Yet, when I open it with MuseScore to see the sheet music, it's written with only one hand in the bass. Is there anywhere you can convert part of the notes into treble and bass so it would be easier to read?

Here's the arrangement on youtube http://www.youtube.com/watch?v=gWzAVCDFAPE
and i attached the midi below