Excel uploader not displaying error message when there is an upload issue in Salesforce

[brolinjohn]

When attempting to upload an Excel file to Salesforce using the Excel uploader, there are cases where the upload fails due to some salesforce upload issue. However, the uploader does not display any error message, but the values are getting updated to the object. So the user is not able to see any error message and its making it difficult for the user to know what went wrong.