Cut it up and hem on all edges to make pillow covers, window coverings, table runners, etc. You might even be able to add sections to towels, clothing, etc.
Is it cotton? You might be able to save it? Also if cotton, you could dye a darker shade. Once you start cutting into it, it will unravel.
If Cotton, make a mixture of oxiclean and dawn Bring to a boil and put the cloth in while hot. let it set until cool. remove and rinse . Then hang in the sun for most of the day.