In Excel and other spreadsheets, an absolute cell reference identifies the location a cell or group of cells.
An example of an absolute cell reference would be $C$4, $G$15, or $A$345.
Note: An easy way to add the dollar signs to a cell reference is to click on a cell reference and then press the F4 key on the keyboard.
An absolute cell reference is used when you want a cell reference to stay fixed on a specific cell.
By contrast, most cell references in a spreadsheet are relative cell references, which change when copied and pasted to other cells.