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Xlsx File is not open on double click but xls file working on double click in Office Excel 2007

Answers

  • Hi,

    We recommend you repair the Office 2007 programs first. This can help to restore the following registry key which affects the behavior of opening .xlsx file:
    HKEY_CLASSES_ROOT\Excel.Sheet.12\shell\Open\command

    If the issue persists, you can compare the same registry key with a known good machine that uses the same OS and Office version. Then correct the key manually.

    Important Before you modify the registry key, please backup the registry.


    Sincerely
    Rex Zhang


    Rex Zhang

    TechNet Community Support

    Tuesday, February 14, 2012 9:29 AM