file-to-markdown

Convert binary document files (PDF, DOCX, XLSX, PPTX, HWP, HWPX, EPUB, MSG, XLS, DOC, PPT, ZIP) to Markdown for AI consumption. Use this skill whenever a user references or wants to read, analyze, summarize, or extract data from any non-plaintext document file. This includes office documents, Korean Hangul files (.hwp/.hwpx), PDFs, spreadsheets, presentations, and email messages. Trigger even if the user just says "read this file" or "what's in this document" and the file is a binary format that Claude cannot read directly with the Read tool. Do NOT trigger for plain text files (.txt, .md, .csv, .json, .xml, .html, .yaml, .toml, .ini, .log, .py, .ts, .js, etc.) — Claude can read those directly.

Convert binary documents to Markdown through the shared file-to-markdown core. Use this when the user references PDF, DOCX, XLSX, PPTX, HWP, or HWPX files that are not directly readable as plain text.