docx (Word)

What it does

A skill for working with Microsoft Word (.docx) documents: building them from scratch and editing existing ones — headings, tables of contents, tables, page numbering, headers and footers, inserting and replacing images, find-and-replace, tracked changes and comments, extracting and reorganising content. It is one of Anthropic's pre-built skills.

How to set it up

• claude.ai / Claude API — works out of the box (pre-built): on the API you reference the skill_id docx in container; on claude.ai Claude applies it on its own when it builds a document.
• Claude Code — via the document-skills bundle:

/plugin marketplace add anthropics/skills
/plugin install document-skills@anthropic-agent-skills

When to use it

• You need a real .docx file (report, contract, letter, template) with proper formatting, not text in a chat window.
• You need to pull content out of someone else's .docx, rewrite it, or run a bulk replacement.
• The document needs branded headers and footers, a table of contents and page numbering.

Example

Ask for "put together a Word report with a cover page, a table of contents and a table from this data" and you get a finished .docx with genuine Word styles that opens in Office without reflowing.