giving response Type in axios config in react i am getting 401 from Azure Ad authr service

when I am specifying responseType in axios config in react I am getting 401 from Azure Ad authr service, I wanted the responseType to be specified as the response i am getting from the api is of FileContentResult, I am expecting for it to be readable as an arrayBuffer, any suggestion here why is this failing for Azure authentication.

API Code:

async Task<dynamic> ExportExcel()
        {
            byte[] FileContent = null;
            
            FileContent = abc.GenerateExcel(_configuration, data);
            return File(
                        FileContent,
                       "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
                       "abc.xls");
        }

UI:

export async function DownloadExcel(Token) {
    const config = {
      headers: {
          Authorization: `Bearer ${Token}`,        
          'Content-Type': 'blob',  
      }
  }
     
   const AxiosRequestConfig = {method: 'POST', url: `APIURL/Controller/ExportExcel`, responseType: 'arraybuffer', config};
    
   const response = await axios(AxiosRequestConfig);
    
  return response.data;
}