EasySpreadsheet can create 100% compatible Excel spreadsheets, as well as open most Excel spreadsheets. However, it cannot open Excel graphics, nor save its graphs in Excel format. An Excel Viewer is integrated with EasySpreadsheet (CD-ROM versions only) and will open any Excel spreadsheet containing graphics. As well, EasySpreadsheet contains an *.ess format that allows savings of graphs constructed within EasySpreadsheet.