Microsoft Excel is an important tool that is being used by a lot of business institutions to complete different tasks. There are only a few corporations in this globe which does not use or have never used Excel in their entire work process. So, it seems to be a nightmare when the excel file or spreadsheet won't open on your device. But, one should not get disheartened as this issue can be easily fixed by applying some solutions. But, before trying any other solution, you should install the latest Office updates via office.com/setup.