- buildTemplateWorkbook: 교각 · IP · 받침 sheets with the headers the parser reads; value cells left empty so no blank-name rows raise E05 - dialog button 입력 템플릿 다운로드 (.xlsx) - tests: sheet order, parser recognition, write-and-read round trip Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>