I have a carved oak table in an item, but how did it go there??? I found it on floor, can anybody tell me how I can use this carved oak table?

if you have the con level and an empty spot, you can use it to fill the spot with your noted item.

 

 

 

However you gain no xp, just a nice item.

Sounds like a flatpack, depending on what you want to do you can put it up or just store it. Flatpacks key issues is that they don't provide any exp to you when they are built. So the "market" for flatpacks is pretty limited.

 

 

 

About the only real market is for top of the line items that "do" something, like the dresser, wardrobe, or costume room storage items. Typically these are either sold or often you can trade for the raw materials.

Get a hammer and saw, go into your house in building mode and use it on an empty spot in your dining room and it will build it, you dont need the normal construction level to put it up.

And how I can create these noted items?

you need a workbench. Different workbenches craft higher lvled items.