Undoubtedly, Excel is a useful application, but there are many cases when Excel keeps crashing, freezes, and even locks up. This not only happens when opening the Excel file, but also crashes when copying and pasting or saving the file. No matter in which situation you are facing this problem, it can be easily fixed by trying some easy ways. In this blog, I will mention the common causes and some quick methods to fix Excel keeps crashing when opening file or saving file.