I would cut off the areas that cannot be saved and I would do this outside. I would then hang the fabric or leave the fabric outside exposed to the sun because sunlight kills mold spores. The brighter the sunlight and the longer outside the better. I would then sort the fabric putting like colors together and start washing load by load with bleach for whites, colorfast bleach for colors or you can use vinegar in the washes in place of bleach. Instead of drying in my dryer I would hang outside again to expose to more sunlight. If that doesn't work then I would have no recourse other than to toss it. But like I said I would do the beginning part outside. I would not want the mold spores in the house. Good Luck.