How do I clean dried cat vomit off of a hardwood floor?

Or a wet warm towel or rag over it until it softens up, then wipe up soap and water. Will dry off nicely.

Use a warm squeezed wet cloth with Murphy's Oil Soap straight out of the bottle . Gently rub until removed- then wipe with a clean dry cloth.

I have used a product call Natures Miracle to get rid of odor and stain of cat urine and vomit. I would test it in an area this is not noticeable to see how it reacts with your floor first. https://amzn.to/2XEYB4X

Hi Pamela, hope this helps you out. Spray the area where the vomit was located with a pet enzyme cleaner for hard surfaces, such as Nature's Miracle Hard Floor Cleaner, to clean the area and prevent any stains. Follow the directions on the label of your selected cleaner. ⁴ If there is a stain, use a pet stain remover for hard surfaces. Here is a link with some products

https://www.thesprucepets.com/best-cat-stain-odor-remover-4153334