Can an XL-ATX fit into the Corsair Obsidian 800D?

I was reading about my motherboard and it said that it was XL-ATX and the PC case i was going to get was the Corsair Obsidian 800D and on the website is said that it would only fit ATX, EATX and mATX...but i think EATX is another term for XL-ATX but im not 100% sure...