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Showing posts with label Excel cannot open the file 'filename.xlsx' because the file format for the file extension is not valid.. Show all posts
Showing posts with label Excel cannot open the file 'filename.xlsx' because the file format for the file extension is not valid.. Show all posts
29 January, 2010

Excel cannot open the file 'filename.xlsx' because the file format for the file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file

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When you try to open a workbook that you receive in an e-mail message for review in Microsoft Office Excel 2007, the workbook does not open...