Every agent that touches a Word or Excel file ends up scraping stdout or wrestling raw OOXML XML. OfficeCLI, from iOfficeAI, is the first open-source tool that treats an AI agent as the primary user instead of a person clicking buttons.
What it actually is
A single binary. No Microsoft Office, no dependencies. It reads, writes, and automates .docx, .xlsx, and .pptx directly. Apache 2.0, written in C#, and already at 8.3k stars after landing on the Hacker News front page with 141 points.
Why agents care
Every command takes --json, so output is structured and deterministic — no parsing XML namespaces. Every element has a stable path like /slide[1]/shape[2], so an agent can target edits precisely. A built-in engine renders documents to HTML or PNG, closing a real render→look→fix loop instead of editing blind.
The install trick
Run install and it auto-detects Claude Code, Cursor, Windsurf, and GitHub Copilot, dropping in an officecli skill. Also built in: 350+ Excel functions evaluated on write, native pivot tables, and {{key}} template merging from JSON.
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