When a company file cannot be accessed or is not responding, the QuickBooks program displays the error message "QuickBooks Company File Not Responding Error". Software incompatibilities, corrupted files, or insufficient system resources could be the cause of this problem. Fixing it usually entails checking file integrity, upgrading software, or contacting technical assistance.If you would want to have a private conversation with a QuickBooks support specialist, you can call us at 1.855.856.0042.