[求助]：Question about strange size *.dwg file

zxwbq

Hey guys, I am sorry I can't type in Chinese since there is no Chinese input on my Company PC.

I came across a problem. There are some *.dwg file have strange huge size. I tried to delete everything inside the drawing and use "select" to make sure there is nothing missed. But the problem still there. Even though I delete all things inside the drawing, it remains huge size, e.g. 11MB.

Attached is the problem *.dwg file

Have you come across such situation? What's the problem and how to deal with it?

Any suggestion is appreciated.

Please reply this either in Chinese or  in English. Cuz I can read them all.

Thanks again.