Using Labels for Cell References
Many worksheets use labels above columns and to the left of rows. You can use the labels on your worksheet instead of cell addresses to reference cells. You can point to cells to add their labels to a formula. However, before you can point to a cell to use its label, you have to define a label range . A label range is the group of row and column labels that you want to use in your formulas. When you define a label range, Excel assigns the row and column labels to the cells.
Define Label Ranges
Remove a Label Range