TreeGrid SpreadSheet

TreeGrid SpreadSheet provides cell based AJAX grid with spreadsheet features like editable formulas, many predefined and custom formula functions, individual cell styling and borders, manipulating individual cells or selected cell groups, auto grid size, auto row and column index. Using one tool, you can customize an existing project management template to create time lines and Gantt Charts. You can also monitor the status of specific tasks with a Kanban view, as well as use the Alerts & Actions tools to nudge a team member to approve or edit a piece.

Boasting seamless integration with other productivity-boosting apps like Google Suite, Dropbox, Slack, and OneDrive, as well as collaboration with external users like clients or investors, Smartsheet is a solid spreadsheet alternative.