Hi @Anonymous,
I, like others used RECOVER to look for errors in the file you provided. During this process it appears that there are so many corrupt entities that many are removed from the drawing entirely.
I found that Purge and -Purge>Regapps also cleaned up the file quite a bit. I have attached my version of your file but compared to the drawing preview, most of the content is no longer in the file.
Do you have another copy of the drawing? Perhaps in a backup?
Please select the Accept as Solution button if my post solves your issue or answers your question.
John Vellek
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