esCalc is a brand-new spreadsheet software. Being a smart desktop BI tool, esCalc leads to the computing ability revolution of spreadsheets. It realizes real visualization of data computation. Computations such as filter, grouping, sorting, ranking, tables join or union can now be achieved by buttons/menus as long as concrete data is given. esCalc can be used to conduct routine data process for business users with low technical abilities, and helps them to create various of complex reports. esCalc makes it easier to solve computations which are difficult and tedious for the conventional spreadsheets (eg, Excel). Calculator style of stepwise operations: Making complex objects easy and intuitive Homocell model: Mass processing of similar cells to reduce manual operations Multi-level structure: Perfect support to multi-level-group data computing Smart resolution of formula: Automatic formula migration according to the location without manual adjustment Complete set-lization: Making set-operations much easier Mult-level join: Completing complex multi-table operations with visualized SQL computing