Yes I/we can, point you in the right direction.
Okay, hook up a mike to the box, usually it's an orange plug that goes somewhere in a connection with a little mike underneath.
Hop into your settings (somewhere) and locate the alsamixer. Unmute the mike, chances are it's muted/deaf/tuned-off...
In the "multimedia" section, look for "sound recorder". Fire it up, hit the record, address the planet, select "File" and "Save as" - export.
Tinker with it, mileage will vary as there are some drivers to be considered.
By the way, what kinda recording? Just notes? Then the method described here will do. Studio recording (music and stuff) - then you'll need something else. But, I'll see that in your reply.