All Documents Missing

I am unsure what happened, but almost all my documents are missing from multiple folders on my Mac and cloud. I have reviewed all the diagnostics posted on the Apple websites and Q and A to recover it. Everything I have tried.

When I can find some of those documents listed (some being Excel spreadsheets) in their app and try to open them, it says that the file has been deleted or is currently not accessible. All of these documents were saved on my desktop, and I searched the computer far and wide, downloaded recovery apps to find them, and found nothing. I am not even sure how they disappeared. I tried updating my Mac to the newest software. As I read, they may appear after that, but there is still nothing.

All Documents Missing
 
 
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