Please Helpppp me! unexpected file format

Any one please help me!!!
I could not open my saved file a day later.
I tried changing skb to skp and it did not work.
All that is left of me is these two files. And no file I can open
https://drive.google.com/drive/folders/1fdhZpcmOtKN1-wqc_oHMsyi7ImxEkH6P?usp=sharing

I get the same unexpected file format message, too.

What version of SketchUp are you using. Your profile shows contradictory information.

Hi,
I’m using Sketchup pro 2018.
Please help me! I work on that for 3 week. And just have 1 week more.
every think in that file. And I dont know how to get them.

As I said, I can’t get your file open either. As a SketchUp Pro user, you should contact Customer Support and see if they have a solution.