See this post. I expect the example could be modified for an Excel file, specifically I expect you would need to change the Content-type value to indicate the appropriate media type like 'vnd.ms-excel'. Let me know if it helps.
See this post. I expect the example could be modified for an Excel file, specifically I expect you would need to change the Content-type value to indicate the appropriate media type like 'vnd.ms-excel'. Let me know if it helps.