It seems that your Excel app is attempting to use an outdated email address for identity verification, which can happen if the old email was previously associated with your Microsoft account. When you log in with your correct email address, the app may still reference the old email for security purposes, especially if it was set as a recovery option before deletion.
To resolve this issue, you may need to update your account recovery options. You can do this by signing into your Microsoft account and checking the security settings to ensure that only your current email address is listed for verification purposes. If the old email address is still present, remove it and add your current email as a recovery option.
If you continue to experience issues, consider reaching out to Microsoft Support for further assistance in updating your account information.
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