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1. answers.microsoft.com › en-us › msofficeexcel file extension not valid or file is corrupt

   answers.microsoft.com › en-us › msoffice

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   1 lut 2024 · Rename the file extension to match the format of the file, such as .xlsx or .xls: Right-click on the Excel file then go to properties > General tab > Rename the file extension. Repair your Excel file: Repair a corrupted workbook - Microsoft Support. Change Trust Center settings:

   • Repair a corrupted workbook - Microsoft Support

     Recover a corrupted workbook manually when Excel can't start...

   • A file is in a different format than its extension indicates in Excel

     When you open a file in Excel, you get an message that the...

   • Excel file extension not valid - Microsoft Community

     1. Change the file extension of your Excel sheet. Sometimes,...

2. support.microsoft.com › en-us › officeRepair a corrupted workbook - Microsoft Support

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   Recover a corrupted workbook manually when Excel can't start File Recovery mode automatically and learn about saving backup and recovery files to prevent losing your work.

3. answers.microsoft.com › en-us › msofficeExcel cannot open the file "xxx.xlsx" because the file format or...

   answers.microsoft.com › en-us › msoffice

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   7 cze 2024 · It seems you’ve tried a comprehensive list of troubleshooting steps. Since the file opens successfully in Google Sheets and an online XLSX viewer, the issue appears to be specific to Microsoft Excel on your computer. Here are a couple more suggestions: Safe mode: Sometimes add-ins can cause issues with opening files.

4. www.howtogeek.com › repair-your-corrupted-excel-fileYou Can Easily Repair Your Corrupted Excel File - How-To Geek

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   2 cze 2024 · If you're unable to open your Excel file and receive a message that the file is corrupted, try changing Microsoft Excel's Trust Center settings, using Excel's built-in repair tool, or changing the file extension of your Excel file. Alternatively, you can edit your Excel file's security settings.

5. www.wikihow.com › Recover-a-Corrupt-Excel-File5 Ways to Recover a Corrupt Excel File - wikiHow

   www.wikihow.com › Recover-a-Corrupt-Excel-File

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   9 sie 2024 · 1. Make sure that you're using a Windows computer. You can only repair an Excel file in the Windows version of Excel. If you're using a Mac, try one of the other methods in this article. 2. Open Excel. Its app icon resembles a green box with a white "X" on it. 3. Click Open Other Workbooks.

6. support.microsoft.com › en-us › officeA file is in a different format than its extension indicates in...

   support.microsoft.com › en-us › office

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   When you open a file in Excel, you get an message that the file name extension doesn't match the actual file format. For example, the file has an .xlsx file name extension but it's really a text file and should have a .txt file name extension.

7. answers.microsoft.com › en-us › msofficeExcel file extension not valid - Microsoft Community

   answers.microsoft.com › en-us › msoffice

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   24 paź 2017 · 1. Change the file extension of your Excel sheet. Sometimes, the problem is seen due to the unsupported file extension of your Excel file. Try renaming the file and change it from .xlsx to .xls or vice versa. 2. Open Excel in Safe mode. Here's how: a. Right-click the Start button (lower-left corner) in Windows, and click Run. b.