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Thread: Excel spreadsheet gets error "Excel cannot open the file .xlsx.." How can I "uncorrup

  1. #1

    Excel spreadsheet gets error "Excel cannot open the file .xlsx.." How can I "uncorrup



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    Hi,

    After a power outage a particularly importantfile gets the error "Excel cannot open the file.xlsx beacause the fileformat or file extension is not valid. Verify that the file has not beencorrupted and that the file extension matches the format of the file. The fileformat has not changed. Is there a safe free program that can uncorrupt a file?I have tried Open and repair, changing the format, and using open office. Also tried using recova but the file was not lost.



  2. #2
    Acolyte candybg's Avatar
    Join Date
    Jul 2015
    Posts
    92
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    Excel Version
    2010 and 2016
    Maybe try to recover a recent backup:
    Right click on the file name, PROPERTIES, Previous Versions tab

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