I was able to open and read this file before installing Windows 8.
The background to this is that after installing Windows 8 and reinstalling Windows University 2010 my word documents and excel files where all opening up as word pad documents. I figured out the solution to the above on my own and I am now able to properly read the excel and word documents that I tested. But I am not able to read a very important excel file. It is very important that I restore somehow this file.
When I open the excel file a dialogue box open up saying "Excel found unreadable content in "Account.xlsx". Do you want to recover the content of this workbook? When I choose Yes the following dialogue box opens up saying "Excel cannot open the file "Account.xlsx" because the file format or file extension is not valid. Verify that the file has not been corrupted and that the extension matches the format of the file".
The file extension is set to xlsx however how do I test to see if it is corrupt. Is there anything I can do to restore this excel workbook?
Thank you all,
Maria
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