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How To Fix Excel Cannot Open the File Format/File Extension Is Not Valid/Corrupted [Solved]




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(Stellar Repair for Excel is the best software to fix all types of Excel file corruption errors. It recovers tables, charts, chartsheets, cell comments, images, formulas, sorts and filters etc, and supports MS Excel 2019, 2016, 2013, 2010, 2007, 2003 & 2000. )

Sometimes after reinstalling the Microsoft Excel few files not opening properly, it’s showing like “Excel cannot open the file because the file format or file extension is not valid. verify that the file has not been corrupted and the file extension matches the format of the file.”
So, Today in this video tutorial I Will show you guys how to fix Excel Cannot Open the File/the File Format or File Extinction Is Not Valid.

Note:- This video has followed all the Youtube community guideline rules. The purpose of this video is to share My knowledge with everyone that is totally Legal, Informational and for Educational purpose. I totally do not support any types of illegal acts or videos.
The videos are completely for legal purposes.

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Nguồn: https://corecplusplustutorial.com/

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  • It's work guys trust me.if you have original ms office then it works 100%


  • Trick not working pls help me


  • Thank you, I finally solved my problem


  • Very good..thank you very muchh..i can fix it,😁😁.


  • Thank u so much!!!


  • Bro i dont have unbloock optiom in file properties ?


  • Thank you so much. This video helped me a lot.


  • Thank you bro finally slove problem after 2 hour spend on that


  • Extremely thanks , i had problem and not its solved using this information.


  • Hey there! Help pls. I use MacBook Pro…. The error ALERT.
    "The file format and extension of ‘ ‘ don’t match. The file could be corrected or unsafe. Unless you trust its source, don’t open it. Do you want to open it anyway?".
    I have installed two times the Excel application. But added to the frustration of using MS package on a MacBook.

    The Options are Yes or No. Clicking both options lead to MULTIIPLE FILES OPENING, REPEATEDLY WITH NO STOPPING. I have to force quit. No result.

    I use MACBOOK & have official Office 365 subscription.

    Clueless what to do & whom to seek help from….
    So, approaching you as favour.


  • look my file was from ms excel 2007 with many formulas in it n i want open it with my laptop which using 2016 ms excel try many way still said that file still corrupted


  • Thanks for the sharing very helpful and work


  • Thanks for sharing. I have repaired my corrupt Excel file using this software.


  • can't open with it


  • still not opening


  • thanks, but tried and applied the same and still getting the message, my file was opening daily, I don't knwo what's wrong suddenly, plz advice, it containes very important data.


  • I unchecked these options, but it didn't work for me. This error is common in the forums too. I read the solution of this forum: https://social.technet.microsoft.com/Forums/office/en-US/63020ccc-51d7-46d9-b956-121c0e6efcc8/excel-file-error-the-file-format-and-extension-dont-match and repaired my file using Excel repair software.


  • Doesn't work at all


  • still not happenening…..


  • It doesnt work


  • This did not work for me


  • Did not work for me.Any other suggestions?


  • security box not working show


  • its not work in my case


  • Tq so much bro… I try and then again msg u


  • nice one