It says in that production bible why sf2 files don't work?

I've checked it out a bit, but honestly that bible is for people who have a basic knowledge of herz and what sinewaves are or what a "synth" is, and a million other terms that are most likely basic to ya'll.

Let's put it this way, the ...

I am very new to all of this, so here is probably the stupidest question of all time.

There are lots of pink files that are apparently .sf2 files that I cannot play.

Is this an issue with my video card, or what can I do to play them? I have also been trying to find some random bass samples so I ...