How to reference another sheet in Excel T o reference a cell or range of cells in another worksheet in the same workbook, put the worksheet name followed by an exclamation mark (!) before the cell address. In other words, in an Excel reference to another worksheet, you use the following format: Reference to an individual cell: Sheet_name ! Cell_address For example, to refer to cell A1 in Sheet2, you type Sheet2!A1 . Reference to a range of cells: Sheet_name ! First_cell : Last_cell For example, to refer to cells A1:A10 in Sheet2, you type Sheet2!A1:A10 . Note. If the worksheet name includes spaces or non-alphabetical characters , you must enclose it in single quotation marks. For example, an external reference to cell A1 in a worksheet named Project Milestones should read as follows: 'Project Milestones'!A1. In a real-life formula, which multiplies the value in cell A1 in ' Project Milestones' sheet by 10, an Excel...