hwpx-editing-skill

Safely read, edit, and convert HWPX (Hangul / 한글 .hwpx) word-processor files with Python + lxml without corrupting them. Use this whenever a task involves a .hwpx file, a 한글 / Hangul / 한컴 (Hancom Office) document, HWPML, or a Korean government / academic / 논문 / 보고서 document — including reading or extracting text and tables (e.g. exporting complex merged tables to Excel / .xlsx), editing paragraphs, tables, images, equations, footnotes/endnotes, or memos, adding or positioning captions, fixing layout (orphaned headings, blank pages, columns), building a table of contents, or repackaging the zip. Also trigger when a 한글 file "won't open" / "is corrupted" (파일이 깨졌다 / 한글에서 안 열린다), or when the user hands you a legacy .hwp (this skill detects it and tells them to convert to .hwpx first). Trigger even if the user only says "edit this 한글 file" or ".hwpx" and doesn't mention the internals — naive edits (re-zipping, stale line caches, cloned ids) make 한글 refuse to open the file.