Notes about the MC4 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 MC4 file type is primarily associated with 'MicroCase' by Cengage Learning. MicroCase is for software-based books. This file contains MicroCase statistical data, which would be related to the book's content.