DHTMLX JavaScript spreadsheet widget allows you to quickly add a cross-browser Excel-like editable data table on a web page. If you need to display data in a table and put it on the web for sharing or further editing, you might consider using online spreadsheet services. However, what if you want to keep the data on your own server? With JavaScript spreadsheet component, you can store the data on your side and show it in an Ajax-based spreadsheet.