If you have a backup copy of your company file made with QuickBooks 2010 or later, and you want to restore the backup and use it with an earlier QuickBooks version, you must use the special Restore Backup For Earlier QuickBooks Version utility instead of the standard Restore command. Why?
When QuickBooks makes a backup of your company file, it also compresses the file so it will take up less space on your hard disk. The internal component that compresses and decompresses files has changed. The new component provides a number of benefits, but the old and the new components are not compatible.
Once you make a backup with QuickBooks 2010 or later, such as when you upgrade QuickBooks and are asked to make a backup of your company file, you can no longer restore that backup with an earlier version of QuickBooks. This utility will take a company file backup created with QuickBooks 2010 or later, and create a restored company file that you can then open in an earlier QuickBooks version.
To do this task
Choose File > Utilities > Restore Backup For Earlier QuickBooks Version.
Click the button next to the Backup filename field.
Find and select a backup QuickBooks company file (the filenames end with .QBB), and then click Open.
The default location is where you last selected to save backup company files.
Click the button next to the Restored filename field.
In the Save in list, select the folder where you want to saved the restored company file. Where should I save it?
If you have not created your own folder for your company file, you should probably save the restored file to the default company file location.
QuickBooks uses the following default location, depending on your Windows operating system, when creating new company files or moving existing company files:
Windows XP: C:\Documents and Settings\All Users\(Shared) Documents\Intuit\QuickBooks\Company Files
Windows Vista: C:\Users\Public\Public Documents\Intuit\QuickBooks\Company Files
Note: Windows XP users see the folder as "Shared Documents" when browsing (clicking folders)
but QuickBooks and Windows display the folder only as "Documents" in paths and addresses.
Enter a unique name for the restored file in the File name field (you don't want to overwrite an existing company file), and then click Save.