The quest to track the actual cause which has led you to this point can be time-consuming. Some other reasons can also block the program from functioning properly, such as third-party plugins installation, system security software, outdated program, etc. For example, the number of applications running at the same time, the hardware specifications of your system –can it handle too much load, are the required resources free to be allocated to another program, etc.
It is not the fault of Excel always but of some conditions. There lie many errors associated with the Microsoft Excel application, and whether you would be stuck in between one or not stands as a question. Every Excel user has faced it some or other time. Have you ever encountered issues with Microsoft Excel sheets while you were working on one, and all out of nowhere, an error message pops on the screen showing Microsoft Excel is not responding? Yes.