The ComponentOne Excel Viewer allows people who do not have Microsoft Excel to view Excel workbook files. The ComponentOne Excel Viewer is a app that lets you view Microsoft Excel workbook files (xls, xlsx files). The ComponentOne Excel Viewer can open Microsoft Excel files but it will not display all features of Microsoft Excel. And any changes on file will not be saved back to the file. It features open Microsoft Excel Files (xls, xlsx files), Microsoft Excel compatible UI behaviors, friendly touch support touchable devices, provide data analysis functions like sort and filter, and provide UI undo redo functions.