# Getting to know the formula bar

# Highlights

Overview |
Use formulas to manipulate your data for use in a data visualization. |

Key Features |
Use the formula editing toolbar to refine and manipulate your data Use Klipfolio's catalog of functions to format data |

Data Formats |
Excel/CSV/Spreadsheet formats XML/JSON formats |

# Overview

You can create formulas using the formula bar to manipulate, refine, and perform calculations on values taken from a data source. Formula editing provides a powerful tool for preparing your data for use in a data visualization.

## Formula Editing Toolbar

Here is an overview of each of the buttons on the formula editing toolbar.

Insert data from the data source. | |

Insert a literal string or number. | |

Reference another component. | |

Insert a variable. | |

Insert a function. | |

Insert a parenthesis. | |

Wrap current value in a function. | |

Wrap current value in parenthesis. | |

Insert a node to the left of the current selection. | |

Insert a node to the right of the current selection. | |

Undo action. | |

Redo action. |

## Operators

You can insert mathematical operators into your expressions by clicking on the `...`

ellipsis. This will bring up with Operator's toolbar with the following options:

## Functions

Learn more about functions in these articles: