Cannot Reinflate Stream Error 2020.02.29

I am running windows 10 Pro and 2020.02.29 and I am getting the error below. This also happens if I try to open this file using 2018.11.11. The file is 13MB and I am hesitant to compress it. Any thoughts out there in the SAM hivemind?

Hi George,

Could you attach a copy of the .sam file to a reply to this post so I can try to replicate the issue?

Also, it is best to attach an image to a post and then use the buttons to insert the image. Cutting and pasting images into the editor does not work.

Best regards,
Paul.

Hey Paul,
The SAM file is 13MB natively. I have tried to get it into a zip folder but it still wont compress lower than 10MB for the forum. Is there a best practice method of compressing the . sam files?
Also see the full error code screenshot attached.
Thanks so much,
George