Unexpected File Format Just Happened

Hello, the problem occurs when I try to use bright colors to differentiate a complex model and then completely replace the material using Vray’s selection feature. Because it took too long, I tried to close the SKP file and an unexpected format prompt appeared. And the same situation occurs after modifying the SKB file suffix. I even tried restoring an earlier version of the file elsewhere, but again couldn’t open it. Can you help me retrieve my files? This is very important to me. (PS: I am using the Pro version of 2023)
Here is my file(Contains SKP and SKB files):File - Google Drive

Install the latest version of SketchUp 2023 and you should be able to open your file. There are some bad components identified during opening.
Screenshot - 1_18_2024 , 12_51_07 PM
I also see a lot of incorrect tag usage.
Screenshot - 1_18_2024 , 12_52_14 PM
And you’re hoarding unused stuff that should be purged.
Screenshot - 1_18_2024 , 12_55_27 PM
Some excessively large textures, too.

Cleaning up the model should help your situation.

Thank you, sir. I’m going to try it now.

The method you mentioned worked, and I am appreciate
for your answer. Thank you for your time.

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