Hello, ComponentOne has a control, XLS.NET, that will allow you to open and manipulate existing Excel files as well as create new ones. Rows and columns are accessed like a grid, so the object model will be familiar to most users. We also have a grid control, FlexGrid.NET, that allows you to load Excel files into the grid and save the grid layout and data to an xls file. If you are interested, more information is available at http://www.componentone.com. All of our products are available as fully functioning evaluations at http://www.componentone.com/Downloadcenter.aspx?PanelIndex=4. Happy Friday :) Suelinda W Customer Engagement, ComponentOne LLC