Univer

open-sheet is a spreadsheet framework for coding agents that represents workbook models as React and TypeScript source. Instead of writing fragile A1-style cell addresses, models can use named references such as `ref('pl').column('revenue')`, which open-sheet resolves at compile time while handling cell addressing, formula references, recalculation, and formula-tree previews. It exports live formulas to XLSX, as well as CSV, HTML, and PDF formats, and reports cells it cannot compute as `#NOT_EVALUATED` rather than emitting a plausible number. The project provides an `npx @open-sheet/cli` initializer, is distributed under the MIT license, and is hosted at open-sheet.dev.

LibreOffice is a free, open-source integrated office suite backed by The Document Foundation. It includes Writer, Calc, Impress, Draw, Math, and Base, and is compatible with most document formats and standards. The LibreOffice core repository is a read-only source mirror; contributions are directed through Gerrit. Its codebase includes shared modules for the system abstraction layer, widgets, rendering, document models, UNO APIs, and the Writer, Calc, Draw, and Impress applications.

Euro-Office DocumentServer is a browser-based document editing service used with OpenCloud. The video describes it as an OnlyOffice fork that performs more processing on the client side, potentially reducing server load. The project describes itself as a sovereign office and provides a Docker image for testing and integration; Debian and RPM packages are stated to be forthcoming.

GenOffice is a free, open-source AI office suite from Genspark AI for macOS, Windows, and Linux. It consists of six Electron applications sharing an engine layer: Docs for .docx files, Sheets for .xlsx spreadsheets, Slides for .pptx presentations, PDF for viewing and editing PDFs, Markdown for plain Markdown files, and a shell application that hosts the editors. It opens and saves Microsoft Office formats, and includes light, dark, and system themes. Its AI panel supports document-aware, block-level edits with version snapshots and diffs; in spreadsheets, presentations, and PDFs it provides a tool-calling agent over document state. Built-in tools include web search, image search, image generation, and media analysis. Users can sign in through Genspark or supply their own keys for providers including Claude, OpenAI, Gemini, DeepSeek, Kimi, GLM, Qwen, Doubao, MiniMax, Grok, Mistral, and OpenRouter, as well as custom OpenAI-compatible endpoints and local servers. GenOffice Docs uses byte-preserving .docx editing in which only modified paragraphs are regenerated, with Word-compatible pagination, tracked changes, comments, styles, equations, and ink. GenOffice Sheets uses the open-source Univer core with in-house extensions and a Rust .xlsx import/export sidecar, plus charts, pivot tables, slicers, conditional formatting, and formula tracing. GenOffice Slides has an in-house .pptx parsing, rendering, and editing engine with masters, layouts, charts, cropping, ink, and text shaping. GenOffice PDF supports annotations, forms, outlines, stamps, signatures, page operations, printing, direct text reflow and image editing, and local conversion to editable Word, PowerPoint, or Excel files; scanned PDFs can use system OCR on macOS and Windows. GenOffice Markdown is a Tiptap block editor that saves headings, lists, tables, images, and code blocks back to plain Markdown. The suite is distributed under the Apache-2.0 license with installers for the three supported desktop platforms.

Electron is an open-source framework for building cross-platform desktop applications with JavaScript, HTML, and CSS. It is built on Node.js and Chromium, provides binaries for macOS, Windows, and Linux, and is used by applications such as Visual Studio Code. The project is MIT-licensed, maintained under the OpenJS Foundation, and distributed via npm.