Sorry, I’ve misunderstood. It’s possible but need to sand back the whole floor?

Sooooo, your saying patching a small (3m2 area) with new floorboards marched to the older look is not possible?

We are renovating the kitchen and hoping to create an island bench, but that means we would need to install fresh floorboards and match closely to the older look.
Anyone had…

What is the process to remove or change a window shape?
Who are the contracters that I need to speak to?
What sort of costs would be involved?