Tables: Adding Headers and Other Accessible Formatting
Column Headings
Screen readers can identify column headings as users move through a table if they are specified in Word. This is critical to ensure that users with visual impairments can understand table content.
First Highlight the column or row that is the header of the Table.
To highlight the Header Row or Column begin by pointing at the first cell of the header. Then hold down the left mouse button down and drag the cursor across all the header cells needing to be identified.
To specify column headings, Right-click anywhere in the table and then Left-click Table Properties...