Possible causes and solutions
Entering text when the formula requires a number or a logical value, such as TRUE or FALSE
Microsoft Excel cannot translate the text into the correct data type. Make sure the formula or function is correct for the required operand or argument, and that the cells that are referenced by the formula contain valid values. For example, if cell A5 contains a number and cell A6 contains the text "Not available", the formula =A5+A6 will return the error #VALUE!.
Entering or editing an array formula, and then pressing ENTER
Select the cell or range of cells that contains the array formula, press F2 to edit the formula, and then press CTRL+SHIFT+ENTER.
Entering a cell reference, a formula, or a function as an array constant
Make sure the array constant is not a cell reference, formula, or function.
Supplying a range to an operator or a function that requires a single value, not a range
- Change the range to a single value.
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Change the range to include either the same row or the same column that contains the formula.
Using a matrix that is not valid in one of the matrix worksheet functions
Make sure the dimensions of the matrix are correct for the matrix arguments.
Running a macro that enters a function that returns #VALUE!
Make sure the function is not using an incorrect argument.