Unhide (columns) command
Use this command to restore one or more hidden columns to the spreadsheet or Totals window. You need to select the column on both sides of a hidden column before choosing the command. For hidden columns at the far right or left of the spreadsheet, click the header of the adjacent column. The columns reappear immediately.
Unhide is on the shortcut menu for column headers if the selection includes one or more hidden columns.
Tip: Showing a column from the spreadsheet changes its Visible setting in the Modify Spreadsheet Layout window.