When you hide a row or column the data still remains in your workbook, but it is no longer displayed onscreen and is not part of the printed workbook. Hiding rows can be helpful when you want to print a copy of your workbook for others, but do not want to share all the information contained in your workbook. At any time, you can choose to "unhide" a row or column, which will redisplay the row or column.
To hide a row or column:
To unhide a row or column: