Friends, let me pass on to you a hard-won bit of advice. Let my travails save you from a similar situation.
If you buy an eight-ounce cone of beautiful fuchsia rayon lace weight yarn, thin slinky slippery rayon yarn, and you drop it, so the yarn falls off the cone, don't try to save the slippery tangled mess.
Order another cone and throw the mess away. Trust me on this. You'll save a vast amount of time and energy, as well as a lot of grief.
After more than a year trying to rescue my fuchsia mess I'm giving up. I've got about an ounce untangled and wound off that I'm going to keep. The rest is going in the trash. I'm not even going to order another cone. I've learned my lesson.