AVAbirami Varadharajan Syncfusion Team August 12, 2016 11:49 AM UTC
Thank you for contacting Syncfusion support.
XlsIO doesn’t have support to open the file created before it is saved. However, we have another control Spreadsheet in web platform. You can achieve your requirement by saving the created file as stream and load the saved file in spreadsheet control. Kindly refer the below link to know more about this.