Thank you for sending the midi file. This midi file indeed does not contain any lyrics. Lyrics need to be added.
Musician and Composer have a feature for adding lyrics to a song using the copy/paste command. The procedure is explained in detail in the manual and in the Lyrics 2 video see
here.
After lyrics is added, the exported midi file then will contain the lyrics and chords. When transfering this exported midi file with a USB stick to a keyboard, many keyboards will display the lyrics on the screen when the song is playing. Those which support the Yamaha XF chord format will display the chords, too.
Reinhold