Show or hide a column in Datasheet view
A thicker vertical line to the right of a column header indicates that the column next to it is hidden.
- To unhide a column, select the visible columns on either side of the hidden column, right-click the selection, and click Unhide.
- To unhide all hidden columns in the list, right-click the top-left corner of the list, and click Unhide.
- To hide a column, right-click the column that you want to hide, and click Hide.