Excel Sharing Violation Save Error

I have this same problem but when I follow the instrucions given above I do not see any Protected Folders Tab. Here is what I see:
User-added image

Hello Adrian,
I apologize for the inconvenience caused. I would request you to deselect the extension type from AVG Ransom ware protection component.
Open AVG Internet Security.
Go to Menu ▸ Ransomware Protection.
Click the Protected Folders tab.
Tick the box next to a file type to deselect it.

Deselect all the types listed on Protected folders tab to fix the issue.

Hello Adrian,
I apologize for the inconvenience caused. I would request you to deselect the extension type from AVG Ransom ware protection component.
Open AVG Internet Security.
Go to Menu ▸ Ransomware Protection.
Click the Protected Folders tab.
Tick the box next to a file type to deselect it.

Deselect all the types listed on Protected folders tab to fix the issue.

When working in Excel, I mistakenly clicked Yes when AVG requested permission to change protection.

Subsequently, when trying to save Excel files I get: 'The document was saved successfully, but Excel cannot re-open it because of a sharing violation'.  The file is saved as a random 8 digit name without a file extension.

If I turn AVG protectoin Off, Excel files can be saved normally.

Anyone know how to remove the offending component in AVG.  I have tried resetting to factory defaults without sucess.

I have this same problem but when I follow the instrucions given above I do not see any Protected Folders Tab. Here is what I see:
User-added image