Lintels (headers), structural members in light-frame construction which run perpendicular to floor and ceiling joists, "heading" them off to create an opening
Header, is a reference to an area within a document that serves to provide the needed context on the content that is included in the report. Headers are often used in reporting to segment content in a consistent manner from one report to another. In this context, especially recognizing the evolving technology display user interfaces, the Header information may appear anywhere within that display (aka Quip :).
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