Sketchup failed to open document - still has file size

My sketchup file wont open the .skp file or the .skb file, both however are 3531KB. Is anyone able to try to help me?
Full Model.skp (3.4 MB)
Full Model.skb (3.4 MB)

Both files seem to be missing most of the data. How big was the original model?

Hi colin, thanks for looking at that, I cant say i have noticed, is there a way to check previous file sizes?

If you can’t find an earlier file, you would need to remember roughly how big was it. That the current file is missing some data from early on in the file suggests the file was originally a lot bigger.

Were you, by any chance, also saving the SketchUp file to your Trimble Connect storage?