Notes about the QB file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.
The QB file type is primarily associated with 'MicroCase' by Cengage Learning. MicroCase is for software-based books. This file gives MicroCase demographic variables for use in its Auto Analyzer feature.