you can see the spot in the picture.
the spot (area B in the picture above) was caused by a wooden chair without proper footing scrapping against the boards. the area you see is where the wood feels raw and unsanded, with the coat of finishing gradually coming on around said area.
can i doctor up this one patch? will i need to pry up the floor? How do i accurately tell the kind of coating on the floor? if i can fix just the patch, how would i go about doing that?