I just perched a 496962 what sand papers works with for dust extraction. does the paper have holes?

Yes, the sandpaper has holes and is the same abrasives used by Festool's RTS 400 and LS 130 sander. Link below to compatible sandpaper for this hand sanding block.https://www.festoolproducts.com/accessories/sanders/abrasives/rts-rtsc-400-abrasives.html