Are you are not able to restore the company file of the QuickBooks? Is error code 6123 is displaying on the screen of your system? If yes, then you have to think of the ways by which you can fix the issue at hand instantly. One of the most common methods is to install the QuickBooks File Doctor and then use it to repair all the damaged files. Even after using this step, if the problem is still haunting you, then you need to call QuickBooks Help Number, where you will be connected with the professionals.