Google Sheets - Synchronizing, online-based word processor, part of Google Drive.
DataTables - DataTables is a plug-in for the jQuery Javascript library.
LibreOffice - Calc - LibreOffice Calc is the spreadsheet program you've always needed. A fork of OpenOffice.
AG Grid - The best HTML5 datagrid in the world
Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.
Handsontable - JavaScript Spreadsheet