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. Dynamic cell styling - every cell can have set and changed style attributes: text color, background color, shadow color and style, font size and name, text bold, italic, underline, strike, overline and small caps. And also horizontal and vertical alignment, wrapping text vertically and text rotate 90 and 270 degrees. Dynamic cell span - every cell can be vertically and horizontally spanned through more next cells. Dynamic cell format - every cell can have set and changed its type and display format.
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Causal
Build models 10x faster, connect them directly to your data, and share them with interactive dashboards and beautiful visuals. Causal's formulas are in plain English— no cell references or obscure syntax and a single Causal formula can do the work of 10s, and even 100s of spreadsheet formulas. Causal's built-in scenarios feature lets you easily set up and compare what-if scenarios, and you can work with ranges ("5 to 10") to understand the full range of possible outcomes of your model. Startups use Causal to calculate runway, track KPIs, plan employee compensation, and build investor-ready financial models for fundraising. Generate beautiful charts and tables without spending hours on customisation and configuration. Easily switch between different time scales and summary views.
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GridCraft
GridCraft is an open-source spreadsheet application for creating, editing, calculating, and analyzing workbooks on desktop or in a browser. Its interface includes a ribbon, formula bar, and sheet tabs, with tools for formulas, dynamic arrays, tables, sorting, filtering, data validation, conditional formatting, charts, and PivotTables. It supports XLSX, CSV, and TSV workbooks, with comments, hyperlinks, print settings, and PDF output. Users can build budgets, schedules, sales summaries, and other data tables, then calculate and visualize results in a workbook. Desktop releases are available for Windows, macOS, and Linux; a WebAssembly build can be hosted on a static server. A command-line tool, JSON control channel, and Model Context Protocol server let developers and AI agents inspect, edit, calculate, and format workbooks programmatically. GridCraft is free, open-source software, and its maintainers currently describe the project as pre-alpha.
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