Excel cannot open the file "xxx.xlsx" because the file format or file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file

Question

I have to try all methods which is shared by communities and blogs but can't revolve
https://techcommunity.microsoft.com/t5/excel/excel-cannot-be-open-the-file-filename-xlsx-because-the-file/m-p/1504346/thread-id/67619Is there a way to resolve this issue? It's urgent to resolve this or any workaround.

Answer 1

Hello, shalu kumari

Welcome to Microsoft Community.

To avoid any redundant efforts, I’d like to gather a bit more information about the location of the file in question. Could you please confirm if the file is saved within your OneDrive folder? Or is it possibly located in a folder that isn’t set to sync with OneDrive? Some users have experienced similar issues when files are placed in folders designated for synchronization.

Additionally, do you have any antivirus software installed on your computer that scans files? Occasionally, files scanned by antivirus programs can become corrupted.

Lastly, could you kindly provide a detailed list of all the troubleshooting methods you’ve attempted? This will help us ensure we don’t repeat any steps you’ve already tried.

Looking forward to your response so we can assist you further.

Yuhao Li

Microsoft Community Technical Support

Answer 2

Hi Yuhao.L - MSFT,
Thank you for your responce,I will update you as soon as I receive the necessary information from my team.

Answer 3

OK. I hope everything will go well.

Answer 4

hey can't be solved and the team is facing this issue.
Is there a way to open the xlsx file I have the bulk of existing files with XLSX format if I change the xls then it doesn't help and lots of time is consumed.
provide a better dynamic approach.

thanks

Answer 5

Hi Yuhao.L - MSFT,

I have concerns about opening Excel files in Windows Microsoft Excel. The file in .xlsx format does not open in Microsoft Excel but successfully in LibreOffice. Attached is a screenshot showing the different systems (Windows and LibraryOffice) where this occurs.

Can you please provide a better solution for why this is happening and how I can open this file in the same format in Microsoft Excel?

Windows

![Image](https://learn-attachment.microsoft.com/api/attachments/59d2672e-5769-4702-a648-71ce624ac25c?platform=QnA"https://learn-attachment.microsoft.com/api/attachments/68fb38cf-1204-416b-a6f5-5c176e3cb541?platform=QnA" title="filestore.community.support.microsoft.com" rel="ugc nofollow">![Image](https://learn-attachment.microsoft.com/api/attachments/68fb38cf-1204-416b-a6f5-5c176e3cb541?platform=QnA