Packagist96Exceptionalhealth index
PHP★ 14K↓ 9.6M/moAug 27, 2026
NuGet94Exceptionalhealth index
C#★ 4,595Aug 29, 2026
Go93Exceptionalhealth index

qax-os/excelizeGo language library for reading and writing Microsoft Excel™ (XLAM / XLSM / XLSX / XLTM / XLTX) spreadsheets
Go★ 20.8KAug 5, 2026
Packagist90Excellenthealth index

openspout/openspout Read and write spreadsheet files (CSV, XLSX and ODS), in a fast and scalable way
PHP★ 1,225↓ 5.7M/moAug 27, 2026
NuGet87Excellenthealth index
C#★ 764Sep 5, 2026
crates.io · npm87Excellenthealth index
Rust · TypeScript★ 539↓ 380.3K/moJul 20, 2026
Maven87Excellenthealth index
Java★ 14.6KAug 27, 2026
NuGet87Excellenthealth index

petrsvihlik/WopiHostThe most advanced .NET implementation of the WOPI protocol. Enables integration with WOPI clients such as Office Online Server.
C#★ 219Sep 4, 2026
crates.io · PyPI · npm +187Excellenthealth index

yfedoseev/office_oxideThe fastest Office document library for Python, Rust, Go, JS/TS, C# and WASM. DOCX, XLSX, PPTX, DOC, XLS, PPT. Up to 100× faster than python-docx/openpyxl/python-pptx. 100% pass rate on valid Office files. MIT/Apache-2.0.
Rust★ 108↓ 161.1K/moAug 22, 2026
npm86Excellenthealth index

harshankur/officeParserA robust, strictly-typed Node.js and Browser library for parsing office files into a rich Abstract Syntax Tree (AST) and generating high-fidelity output in multiple formats. Parses: docx · pptx · xlsx · odt · odp · ods · pdf · rtf · csv · md · html. Generates: Markdown · HTML · CSV · RTF · PDF · Plain Text · RAG Chunks
Rich Text Format · HTML★ 533↓ 2.9M/moAug 27, 2026
Packagist86Excellenthealth index

sensiolabs/GotenbergBundleA Symfony Bundle for interacting with Gotenberg. Integrates natively with twig, router, PHPStorm and more !
PHP★ 236↓ 63.3K/moAug 22, 2026
Go · PyPI81Excellenthealth index
xuri/excelize-pyExcelize is a Python port of Go Excelize library that allow you to write to and read from XLAM / XLSM / XLSX / XLTM / XLTX files.
Python · Go★ 49Aug 1, 2026
NuGet · npm80Excellenthealth index
EvotecIT/OfficeIMOFast and easy to use cross-platform .NET library that creates or modifies Microsoft Word (DocX) and later also Excel (XLSX) files without installing any software. Library is based on Open XML SDK
C#★ 484Jul 20, 2026
NuGet80Excellenthealth index

manfromarce/DocSharpPure C# library to convert between document formats (Office 97-2003, Open XML, RTF, Markdown)
C# · Rich Text Format★ 64Aug 11, 2026
npm · Go · NuGet80Excellenthealth index
mmonterroca/docxgoCreate and edit Microsoft Word (.docx) documents in pure Go — fluent builder, templates & mail merge, themes, tables, and images.
Go★ 111↓ 401/moJul 22, 2026
Packagist77Goodhealth index

PHPOffice/PHPWordA pure PHP library for reading and writing word processing documents
PHP★ 7,581↓ 1.9M/moAug 22, 2026

chrisryugj/kordoc모두 파싱해버리겠다 — HWP·HWPX·PDF·Office 문서를 Markdown으로. 양식 자동 채우기와 신구대조를 갖춘 CLI·MCP 서버 | Convert Korean documents (HWP, HWPX, PDF, Office) to Markdown — CLI and MCP server with form filling and diff
TypeScript★ 1,762↓ 65.4K/moAug 22, 2026
soenneker/soenneker.excel.utilProvides methods for reading and writing Excel files using strongly-typed objects with automatic property mapping and basic type conversion
C#★ 1Jul 17, 2026
xuri/excelize-csExcelize is a C# port of Go Excelize library that allow you to write to and read from XLAM / XLSM / XLSX / XLTM / XLTX files.
C#★ 14Jul 22, 2026
EvotecIT/PSWriteOfficeMIT-licensed PowerShell document automation for Word, Excel, PowerPoint, PDF, email, PST/OST, OneNote, Visio, OpenDocument, and mixed-format Reader workflows.
C# · PowerShell★ 156Jul 31, 2026
Packagist · PyPI75Goodhealth index
aVadim483/fast-excel-writerLightweight and very fast XLSX Excel Spreadsheet Writer in PHP. Supports full XLSX-file functionality - cell formatting, formulas, styles, charts, etc.
PHP★ 306↓ 75.4K/moJul 18, 2026
TypeScript★ 3↓ 52.1K/moJul 27, 2026

iOfficeAI/OfficeCLIOfficeCLI is the first and best Office suite purpose-built for AI agents to read, edit, and automate Word, Excel, and PowerPoint files. Free, open-source, single binary, no Office installation required.
C#★ 25.5K↓ 17.9K/moAug 5, 2026
Go · npm73Goodhealth index
officecli/officedexOfficeDex is the first Al-Native VibeOfficing platform for documents, slides, and spreadsheets
Go · JavaScript★ 751Jul 22, 2026
open-xml-templating/docxtemplaterGenerate docx, pptx, and xlsx from templates (Word, Powerpoint and Excel documents), from Node.js or the browser. Demo: https://www.docxtemplater.com/demo. #docx #office #generator #templating #report #json #generate #generation #template #create #pptx #docx #xlsx #react #vuejs #angularjs #browser #typescript #image #html #table #chart
JavaScript★ 3,610↓ 3.3M/moAug 2, 2026
crates.io71Goodhealth index

iyulab/undocHigh-performance Rust library for extracting content from DOCX, XLSX, and PPTX into Markdown, plain text, or JSON with CJK support and .NET/Python bindings.
Rust★ 34↓ 3,014/moSep 5, 2026
Python★ 13↓ 2,026/moAug 24, 2026

mgilbir/spineZero-dependency Go library for reading and writing Microsoft Office documents (.docx, .xlsx, .pptx) with byte-identical round-trip fidelity
Go · Python★ 0Aug 10, 2026
Packagist65Goodhealth index
PHP★ 1,372↓ 131.2K/moJul 24, 2026
Go · npm65Goodhealth index
openocta/openoctaOpen-source work buddies. Open-source personal desktop AI agent.Go runtime for office/ITops/marketing workflows.
TypeScript · Go★ 3,005Jul 18, 2026