Telerik.Web.Spreadsheet 2025.1.227 Progress true https://www.telerik.com/purchase/license-agreement/aspnet-mvc https://www.telerik.com/aspnet-mvc Telerik.Web.Spreadsheet is required for conversion between the JSON format used by the Kendo UI Spreadsheet and popular file formats such as Excel (.xlsx), CSV and PDF. Copyright © 2012-2024 Progress Software Corporation and/or one of its subsidiaries or affiliates. All rights reserved. Spreadsheet aspnet aspnetcore aspnetcoremvc Kendo UI Telerik DPL export import excel xlsx csv pdf