Handsontable supports a number of cell types including checkboxes, passwords and dates, while it also offers the possibility to create custom cell formats. It has tools for grouping, filtering and sorting columns, customizing menus and headers, row and column moving, hiding, freezing and virtualization, cell rendering and merging and much more. There are also validators and editors available for cells. On top of that, Handsontable makes it possible to leave comments and build summaries.
HyperFormula will support your data grid with a constantly-growing collection of functions and a tool for creating custom formulas. Its functionality creates cell dependencies of the relative and absolute types, performs CRUD operations, works with named ranges and multiple worksheets. It also allows cutting, copying, pasting, redoing and undoing.
Implementation of this tool in your app will not cause any conflicts with your CSS code as the calculation solution by Handsontable does not affect a user interface.
There are numerous examples where this tool can prove to be helpful including tracking inventory, sales, orders or accounting information.