How to clean this surface picture attached?

I can help, but I don’t have the attached image here. If you describe the surface, I can give exact steps. In the meantime, use a safe general method: dust/vacuum first, then wipe with a soft cloth dampened with warm water and a little mild dish soap; test in a small hidden spot before cleaning the whole area. For stubborn grime, use a cleaner made for that specific surface type, and avoid abrasives, bleach, or excess water unless you know the material can handle it.