Deleting Rows & Columns from the table

You can also remove columns or rows from the table. Once a row or column is deleted, it can be undeleted by using Undo command. You can delete the columns or rows or cells by using one of the following ways. 

By Table Menu

To delete a row or column by Table menu, follow these steps.

• Place the insertion point in the column or row that is to be deleted.
• Click Table menu and then select "Delete" from Table menu, a submenu of Delete is displayed.
• Select Columns or Rows or Cells command to delete the selected element (column or row or cell) from the table.

By Popup Menu

To delete a row or column by popup menu, follow these steps.

• Select the column's you want to delete.
• Right click the mouse, a popup menu is displayed.
• Select "Delete Columns" command, the selected columns will be deleted.

OR

• Place the insertion point in the column or row that is to be deleted.
• Right click the mouse, a popup menu is displayed.
• Select "Delete Cells" command, "Delete Cells" dialog box is appeared.
• Select  "Delete entire row" to delete a row or select "Delete entire column" to delete a column etc. from the dialog box and click "Ok" button.
  
  
  http://www.computerfreetips.com/Office_Tips/q_column_office.html