QuickBooks File Doctor is basically a diagnostic tool in an advanced version that helps in diagnosing and repairing the technical glitches of QuickBooks. Whether you’re having QuickBooks installation issue or series of -6000 errors, you can make use of this file doctor. If you’re getting the access denied message to the QuickBooks database server manager then also you can utilize this tool. Apart from this, the QB file doctor helps in resolving the connectivity issue, data damage issue, bad configuration of firewall port and employee list has detected a bug.