Simple Sheets

Simple Sheets is a spreadsheet application with a modern user interface, rich editing features and full support for Microsoft Excel, OpenDocument and many other formats. It can load, convert and save workbooks to XLS formats and can export and import XLSX, CSV and TXT files. It offers comprehensive bulk correspondence features for a wide range of business requirements. You can automatically generate personalized letters and a variety of business documents, as well as compose master-detail reports of any complexity (including catalogs, header/invoice detail, or reports).