A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data
Hello @Rohan Matte,
Welcome to the Microsoft Q&A Forum and thank you for your question.
I noticed that your post was categorized under Business, so before proceeding, I would like to confirm whether the account you are using is a Microsoft 365 Business account or a personal Microsoft account (hotmail.com, outlook.com, gmail.com...). This information is important because certain issues, such as file permissions, data protection policies, or organizational restrictions, can differ between business and personal subscriptions.
At the moment, the information provided does not allow me to determine the exact cause of the problem. To assist you more accurately, may I kindly ask for some additional details?
- Could you please let me know what exact error message appears when you attempt to open the file? If possible, a screenshot of the error would be extremely helpful.
- Could you confirm whether this problem occurs only for this file, or have you noticed similar issues with other Excel files as well?
- Was this file exported from a CRM system, shared by someone in your organization, or created directly in Excel?
- Have you already tried opening the file on a different computer or through Excel Online? This helps determine whether the issue is with the file itself or with the environment on your device.
- Could you share whether anything changed right before the problem started? For example, installing updates, moving the file, downloading it from email, or modifying it in another program. Even small actions like renaming the file or syncing it from cloud storage can sometimes cause format or extension mismatches.
Once I receive this information, I will be able to guide you through the next steps more accurately. Thank you very much for your cooperation, and I’m here to help you.
Kind regards,
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