Hi, @Neal1966. Thanks for joining the thread.
 

When QuickBooks updates a company file, it alters the structure of the data file to be compatible with new features and improvements included in the latest version. As such, once a company file is updated to a newer version of QuickBooks, it cannot be opened with an older version.
 

To provide better assistance, may I kindly inquire if you experience any specific issue restoring your company file to an updated QuickBooks Desktop software?
 

Let us know if you have updates on the situation. We'll do our best to assist. Take care.