If you have encountered QuickBooks Error 6147 , this article is just for you. This error restricts you from opening your company file's original or backup. You must know as common as this issue is, rectifying it sooner is your first primary task. As if not eradicated might infect the precious data in the file. However, before even knowing the cause of any mishappening, you can't solve it. The damaged .ND & .TLG files, improper setup of firewall settings, and the backup file n