How to use the arduino robot speaker ?

Hello everyone,
I'm working on this arduino :

I didn't find any way to make read some music files to it.
I already used the tmrpm library and WAV files, but i don't find the integrated speaker's port.
Also, i tried using sqm files and it worked. But i didn't find a way to convert mp3/WAV to sqm files (i simply used the basic sqm program)
Can anyone help me find this, or send me to someplace or someone who know it?

The speaker is on pin 5. That means you should be able to use the TMRpcm library with the Arduino Robot Control board.