Not to be confused with a column header or row header, a table header is a row at the top of a table used to label each column. For example, in the below table there are three columns with a "Name," "Date of Birth," and "Phone" header.
Example table header in HTML
|Name||Date of Birth||Phone|
Header row in Microsoft Excel table
When a table is created in Microsoft Excel, a header row allows table data to be sorted and the design of the table to be different from other data.
In the picture, the header row is the "Part," "Low Price," and "High Price" cells at the top of the table. Clicking the down arrows on any of the columns allows you to sort that column. In our example, the "Low Price" column is sorted from highest to lowest.
Header row in Microsoft Word
Like a header row in Excel, the header row in Microsoft Word is the top row of a table in Microsoft Word.