Excel cannot open the file because the file format or file extension is not valid

Excel cannot open the file because the file format or file extension is not valid is an error on Microsoft Excel when you cannot open an excel file. This problem mostly occurs if the excel file that you are trying to open is invalid or corrupted. Whenever you double click the file to open you will see an error that says the file can’t be opened because the file you are trying to open doesn’t have valid format or it doesn’t have valid extension.
After you follow the steps on this video, you will be able to solve Excel cannot open the file because the file format or file extension is not valid error on MS excel. On this video I will show you two different methods to solve the problem, one is by fixing the permission on excel file and the other method is by opening excel in safe mode and recovering the file from there.
After you follow the steps on this video and apply the fix as shown in the video. You will be able to fix this error on MS excel Excel cannot open the file because the file format or file extension is not valid.

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