Is there such a thing as an adapter for Mac External hard drives to PCs?

I used to have a MacBook Pro. I had to buy a special external hard drive specifically for Macs to transfer files and projects over to. My Mac broke and I ended up buying s PC because that was what I could afford at the time. But now, my files and projects are stuck on my eternal hard drives because I can't open them to work off them on my PC. I do not want to buy another Mac just to get these things off. Does anyone know of a solution? Is there an adaptor I may be able to get or something to avoid buying another computer? Thanks in advance.