[Unexpected file format] After normal save

Hello again,

I have been working on the project steadily for about a month. The last night, after the automatic save, I manually saved it again. When I tried to open the project in the morning, I encountered the issue I mentioned. I checked all storage locations that could contain recovery files related to Sketchup, including the “Temp” folder, but I couldn’t find the file I needed. The polygon count wasn’t very high because I manually drew most of the furniture.

@colin I’m glad you could help to solve my problem. Thank u so much.

You should probably take a little time to fix the incorrect tag usage in your model …
Screenshot - 7_9_2023 , 2_15_11 PM

… and fix the reversed faces. There should be no exposed blue back faces in your model.

Hi, I also get “Unexpected file format” error after normal save. Now SKP can`t open, skb file is also not opening. Could you please recover it?

Here is the file, i uploaded it to wetransfer.

Thank you in advance!

I had no trouble opening your file. I fixed the incorrect tag usage.
Screenshot - 7_19_2023 , 7_46_46 AM
Note there are a number of reversed faces that out to be corrected.

Can you open this copy of your file?
LA purged.skp (12.6 MB)

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@DaveR thank you! Just all materials disappeared. Is it possible to keep materials too somehow while recovering it?

No they didn’t. I just changed the Face Style to Monochrome to show the incorrectly oriented faces so you can fix them. You can change the Face Style back to Shaded or Shaded with Textures to see the materials.

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All materials also there too! I just saw after changing to Shaded with textures. Thanks a lot for quick reply and fix!

There’s nothing to fix regarding the materials. Just turn on Shaded with Texture. Or just select the original style in the Styles panel. I didn’t update the style to Monochrome.

Fix the reversed faces.

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@DaveR it works perfect. thanks a lot!

@colin
Hi, I was working on my 3D model, and saving normally. After a day of work, I closed the file and now, I can’t open anymore.
When I try to open, the message “unexpected file format” appears. The .skb file is also with this problems.
Could you please try to recover my file? I have so much work in this file, I can’t lose everything.

Here’s a link to the files in the we transfer:

It would be appreciated if you’d let us know ahead of time that the file is 1 GB. :smile:

I was able to open 672 - APTO TOM GAFISA - 3D - R00 using SketchUp 2023.1. You could install that version and try. It identified a bad component.

I did my usual checks and cleanup. Incorrect tag usage fixed.
Screenshot - 9_30_2023 , 8_38_41 AM
Unused content purged. No need to be hoarding that stuff.
Screenshot - 9_30_2023 , 8_39_31 AM
And some very huge textures resized to something reasonable.

This reduced the file size by 76% making your file much more manageable. There’s still quite a lof of excess detail that could be reduced to make the file more manageable.

Try opening it with 2023.1. If you have problems with that I’ll upload the purged version of your file.

Hy @DaveR !
Thank you so much for the support!!! You saved many hours of work!
The software is from the company I work, so I have to contact the tecnology team on monday to update the software.
Could you upload the purged version, so I will try opening here?

Here you go. Before you proceed with this file I would suggest that you go through your model and clean things up. I expect you could edit the bed component and reduce the polygons or maybe easier, find a more suitable bed for the job. Unless this entire model is about the wine bottles on the wall, I would suggest replacing the label textures with simple colors.

Why have you divided the walls into small chunks as components? Is there a benefit to that? Many of the components don’t line up properly.


Your model would be more efficient if you made the walls as a single object instead.

TL8.skp (7.8 MB)
Please help me recovering this model @colin

See if this works for you. There was a bad object in the model.
TL8 fixed.skp (1.7 MB)

FWIW I fixed incorrect tag usage, purged unused, and reduced a huge texture image to something more reasonable.
Screenshot - 10_11_2023 , 9_09_18 AM

Screenshot - 10_11_2023 , 9_09_37 AM
About 79% file size reduction.

I would suggest you update to the most recent release of SketchUp 2023. It was posted yesterday.

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