1. #NULL! - The #NULL! error value indicates that a formula is referring to an intersection of two areas that do not intersect. This can happen when a formula refers to a range of cells that do not intersect, or when a name is used in a formula that does not correspond to a defined name.

2. #DIV/0! - The #DIV/0! error value indicates that a formula is trying to divide by zero. This can happen when a formula divides a number by another number that is equal to zero, or when a formula refers to a cell that contains the value zero.

3. #VALUE! - The #VALUE! error value indicates that a formula is referencing a cell that contains a value that is not a number. This can happen when a formula refers to a cell that contains text, or when a formula refers to a cell that contains a date or time value that is not a number.

4. #REF! - The #REF! error value indicates that a formula is referencing a cell that does not exist. This can happen when a formula refers to a cell that has been deleted, or when a formula refers to a cell in a worksheet that has been renamed.

5. #NAME? - The #NAME? error value indicates that a formula is referencing a name that does not exist. This can happen when a formula refers to a name that has been deleted, or when a formula refers to a cell that contains a name that is not defined.

6. #NUM! - The #NUM! error value indicates that a formula is referencing a number that is not valid. This can happen when a formula refers to a number that is too large or too small, or when a formula refers to a cell that contains a number that is not a valid number.

7. #N/A - The #N/A error value indicates that a formula is referencing a cell that does not contain a value. This can happen when a formula refers to a cell that is empty, or when a formula refers to a cell that does not exist.

8. #GETTING_DATA - The #GETTING_DATA error value indicates that a formula is referencing a cell that is not yet available. This can happen when a formula is referencing a cell that is being updated by another formula, or when a formula is referencing a cell that is not yet available.

9. #ERROR! - The #ERROR! error value indicates that a formula is referencing a cell that contains an error. This can happen when a formula refers to a cell that contains a #NULL! error, a #DIV/0! error, a #VALUE! error, a #REF! error, or a #NAME? error.

10. #N/A N/A - The #N/A N/A error value indicates that a formula is referencing a cell that does not contain a value. This can happen when a formula refers to a cell that is empty, or when a formula refers to a cell that does not exist.