There are 17 information functions varying in usefulness, power and potential complexity.

#### Data Type Information Functions

#### Error Information Functions

Function | Usefulness | Power | Complexity |
---|---|---|---|

ERROR.TYPE | |||

ISERR | |||

ISERROR | |||

ISNA |

#### Constant Information Functions

Function | Usefulness | Power | Complexity |
---|---|---|---|

NA |

##### Using a Information function:

### Summary

Excel's information functions are primarily used to get information about cells, ranges and worksheets and can play a role in managing errors in your workbook or as inputs to other formulas.