Still Before You Begin

A good administrator makes a COPY of the data before manipulating it.

2. Try This: Copy the Spreadsheet
Go to Home -> Cells -> Format.

Click on Move or Copy.

A new sheet will be inserted.

 

3. Try This: Rename the Worksheet

Click on the Original Data (2) tab.

Go to Home -> Cells -> Format.

Click on Rename Sheet.

The Name in the tab should be highlighted black. Type:  Data Tables.

Click ENTER on the keyboard.

Keep going...

Memo to Self: You can achieve the same results by right-clicking the tab, as shown.