Go language library for reading and writing Microsoft Excel™ (XLAM / XLSM / XLSX / XLTM / XLTX) spreadsheets
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Etherpad: A modern really-real-time collaborative document editor.
- etherpad
- collaboration
- web-editor
- documents
TranslatedChinese copywriting guidelines for better written communication / A guide to Chinese copy typesetting
Xournal++ is a handwriting notetaking software with PDF annotation support. Written in C++ with GTK3, supporting Linux (e.g. Ubuntu, Debian, Arch, SUSE), macOS and Windows 10. Supports pen input from devices such as Wacom Tablets.
- notetaking
- crossplatform
- gtk3
- c-plus-plus
A pure PHP library for reading and writing spreadsheet files
- php
- spreadsheet
- excel
- libreoffice
Sketch and take handwritten notes.
A pure PHP library for reading and writing word processing documents
- php
- libreoffice-writer
- msword
- doc
ClosedXML is a .NET library for reading, manipulating and writing Excel 2007+ (.xlsx, .xlsm) files. It aims to provide an intuitive and user-friendly interface to dealing with the underlying OpenXML API.
A Python library for reading and writing PDF, powered by QPDF
- pdf-generation
- pdf-manipulation
- existing-pdfs
🎨 Powerful, minimalistic, cross-platform, opensource note-taking app
A C++ library for reading, writing, creating and modifying Microsoft Excel® (.xlsx) files.
- excel
- cpp
- cpp17
A pure PHP library for reading and writing presentations documents
- php
- libreoffice-impress
- powerpoint
- odp
Single API for reading, manipulating and writing data in csv, ods, xls, xlsx and xlsm files
Writing is a lightweight distraction-free text editor, in the browser (Markdown and LaTeX supported).
XLSX I/O - C library for reading and writing .xlsx files
PDFio is a simple C library for reading and writing PDF files.
- c
- pdf-generation
- pdf-document
Russian text quality for AI agents — neuroslop cleanup, typography, information style, editorial standards, UX writing, business correspondence. Scores text 0–10. 2,000+ linguistic atoms.
- claude-code
- editorial
- russian
- typography
Go library for reading and writing Microsoft Docx
- doc
- document
- docx
- go
Markdown editor that gets out of your way. Lightweight, fast, portable. First release of https://4worlds.dev
- markdown-editor
- offline-first
- privacy-tools
- rust
Neural machine translation between the writings of Shakespeare and modern English using TensorFlow
- tensorflow
- shakespeare
- seq2seq
- neural-machine-translation
Overleaf CLI - pull, push, sync, compile LaTeX projects from your terminal. Git remote helper, MCP server for AI agents, and TypeScript library.
OCaml library for reading, writing and modifying PDF files
A sophisticated implementation of Unicode Bidirectional Algorithm
- unicode
- bidi
- unicode-bidirectional-algorithm
- uax-9
AI writing assistance. Free & open source. Offline English and German grammar checks, with rewrites and translation through your own AI.
- chrome-extension
- grammar-checker
- writing-assistant