SSSridhar Sukumar Syncfusion Team February 1, 2017 07:33 AM UTC
Files could not be downloaded (directlysaving in client machine) using Ajax call and so, we have provided a workaround by saving the Excel document in the disk and downloading it. Please find the sample in the below link.
SSSridhar Sukumar Syncfusion Team February 2, 2017 10:46 AM UTC
Thank you for updating us.
You can directly delete files from the disk using Delete() method in System.IO.File . Before deleting the file, you should extract the file content as a byte array and send that to download the file.