stained vinyl flooring
1) Using any type of bleach on a sheet vinyl floor my have reverse effects of what your trying to accomplish. It may bleach the spot enough to give it a lighter appearance than the rest of the sheet vinyl. It can also dull the surface permanently thus making cleaning more difficult.
2) Steel Wool will (if not very carefull) put undo stress on the wear layer and most likely reduce or damage it.
I would recommend using Armstrong's New Beginnings Cleaner before trying any of these above mentioned methods.
[This message has been edited by Al Borland (edited October 27, 1999).]