Deleting rows and columns in Excel?

many a time you may require to add a row of data or a coloumn of data which you forgot to enter earlier .excel proveides you the facility to insert rows or columns onto the sxisting worksheet very easily .it is that inserting a row of data will shift the rest of the rows down and cause the ladt row of the worksheet ,the rest of the columns shift right ,if there is any data in the last row or column of the worksheet that will be lost .