Ms Excel is really a very handy application which helps
excel users to store, organize and manage huge amount of data. But similar to
other computer files Excel files are too get corrupted and you may suffer with
various errors while accessing the excel file.
Let us consider one example - "Excel cannot open the
file '(filename)'.xlsx' because the file format or file extension is not valid.
Verify that the file has not been corrupted and that the file extension matches
the format of the file."
