Failed to open document! Pleasehelp me?

When I tried to open it again I got a window saying “Failed to open document”…

I’ve tried changing the name, opening the .skb, the .skp, changing the location of the document… Can you try for me?
Hữu Hiếu CNC - Cửa hàng thực phẩm.skp (7.0 MB)
MA_105 - XUAT_2.skp (4.9 MB)

The last part of the bigger file is filled with zero values. Most of the middle of the smaller file is also filled with zeros. There isn’t a way to recover from that, you would need to see if Windows has history for those files. In File Explorer show the properties for the file, and look in the Previous Versions tab to see if there are any older versions of the file.

Thanks for your help !