# Spreadsheet Workbench/es

## Introduction

The Spreadsheet Workbench allows you to create and edit spreadsheets, use data from the spreadsheet as parameters in a model, fill the spreadsheet with data retrieved from a model, perform calculations, and export the data to other spreadsheet applications such as LibreOffice or Microsoft Excel.

The Spreadsheet Workbench has been available since FreeCAD 0.15.

## Cell Expressions

A spreadsheet cell may contain arbitrary text or an expression. Technically, expressions must start with an equals '=' sign. However, the spreadsheet attempts to be intelligent; if you enter what looks like an expression without the leading '=', one will be added automatically.

Cell expressions may contain numbers, functions, and references to other cells. Cells are referenced by their row (CAPITAL letter) and column (number). Example: B4 + A6

Numbers may use either a comma ',' or a decimal point '.' separating whole digits from decimals.

The constants *pi* and *e* are predefined, and must be written in lowercase.

## Supported Functions

### Mathematical Functions

The mathematical functions listed below are available.

Multiple arguments to a function may be separated by either a semicolon (';') or
a comma *followed by a space* (", ").
In the latter case, the comma is converted to a semicolon after entry.

Trigonometric functions use degrees as their default unit;
for radian measure, add **rad** following the *first* value in an expression.
Example: cos(45) is the same as cos(pi rad / 4).

**Description**: Ceiling

**Returns**: The smallest integer value greater than or equal to x introduced in version 0.16

**Description**: Floor

**Returns**: The largest integer value less than or equal to x introduced in version 0.16

**Description**:

**Returns**: x rounded to the nearest integer introduced in version 0.16

**Description**: Truncate

**Returns**: x truncated to the nearest integer introduced in version 0.16

### Statistical / Aggregating Functions

The aggregating functions listed below are supported.
Aggregating functions take one or more arguments, separated by a semicolon ';' or a comma *and* a space ", ".
Arguments may include references to cells;
cell references consist of the row letter (CAPITAL) followed by the column number.
Arguments may include ranges of cells (two cell references separated by a colon).
Example: *average(B1:B8)*

**Description**: Number of cells from x through y

**Returns**: The number of cells from x through y, inclusive

**Description**: Standard deviation of values in cells x through y

**Returns**: Standard deviation

### Conditional Expressions

Conditional expressions are of the form *condition ? resultTrue : resultFalse*

The condition is defined as an expression that evaluates to either 0 (false) or non-zero (true). The following comparison operators are defined: ==, !=, >, <, >=, and <=.

The conditional statement has a bug regarding nested conditional statements. Only the true-result may contain another conditional statement. This is because parentheses are removed after an expression is entered. Trying to put a nested conditional statement in the false-result may result in incorrect parentheses causing a different result after saving and reopening the document.
Note: This may not longer be true; at least *some* false result conditionals work properly.

## Reference To CAD-Data

It is possible to use data from the construction in the spreadsheet. The following table shows some examples assuming the model has a feature named "Cube" (note that this is the internal name of the feature, not the user assigned Label):

CAD-Data | Call in Spreadsheet | Result |
---|---|---|

Parametric Length of a Part-Workbench Cube | =Cube.Length | Length with units mm |

Volume of the Cube | =Cube.Shape.Volume | Volume in mm³ without units |

Type of the Cube-shape | =Cube.Shape.ShapeType | String: Solid |

Label of the Cube | =Cube.Label | String: Cube |

x-coordinate of center of mass of the Cube | =Cube.Shape.CenterOfMass.x | x-coordinate in mm without units |

## Cell Properties

The properties of a spreadsheet cell can be edited with a right-click on a cell. The following dialog pops up:

It has several tabs. The following properties can be changed:

- Text color and background color
- Text horizontal and vertical alignment
- Text style: bold, italic, underline
- Display unit for this cell. Please read the section below.
- Define an alias-name for this cell. This alias-name can be used in cell formulas and also in FreeCADExpressions introduced in version 0.16

The expressions are explained here: Expressions

## Spreadsheet Data in Expressions

The usage of spreadsheet data in other parts of FreeCAD requires a fully defined name. Because it is possible to have more than one spreadsheet in a document, the spreadsheet name together with the cell name or alias is required. The following pictures showing the usage of an alias "number" from a spreadsheet "MySheet" in an expression in the PartDesign Workbench.

Typing an "M" shows a list of available names. The arrow-buttons allow to select "MySheet".

Typing an "n" shows now the list of available alias names in MySheet starting with "n". The "number" can be selected with the down-arrow-button. Once a valid name with a usable content is given, the result field will present the calculated length.

## Units

The Spreadsheet uses units. If a number has a unit, this unit will be used in all calculations. The multiplication of two length with the unit mm gives an area with the unit mm².

You can switch the length-unit from mm to inch in the dialog, you get with a right-click on a cell. The cell will now show the length in inches. The value used for calculations does not change. The results of a formula using this value do not change, when the shown unit of an input was changed. The result is still calculated from the length in mm.

A number without a unit cannot be changed in a number with unit by the cell properties dialog. One can put in a unit string, that will also be shown, but the cell still contains only a number without unit.

Sometime it is desirably to get rid of a unit. This can only to be done by multiplying with 1 with a reciprocal unit.

## Importing and exporting

Sheets can be imported and exported to the csv format which can also be read and written by most other spreadsheet applications such as Microsoft Excel or LibreOffice Calc. When importing files into FreeCAD, the delimiter (the character that is used to separate columns) must be the TAB character (this can be set when exporting from other applications). The import of a CSV-file is available over the menu Spreadsheet/ Import Spreadsheet or by clicking on the icon . This import function does not open Excel files or any other spreadsheet format.

Spreadsheets in Excel-format "xlsx" can be imported via the menu File/Import... into a FreeCAD document. Excel-spreadsheets can also be opened by FreeCAD by clicking in the menu File/Open... or by clicking on the icon . In this case a new document with a spreadsheet inside is created. Supported are the following features:

- all functions that are also available in the FreeCAD spreadsheet. Other functions do give an error in the corresponding cell after the import.
- Alias names for cells
- More than one table in the Excel-sheet. In this case more FreeCAD spreadsheets are created.

Other functionality is not imported into the FreeCAD spreadsheet. The Excel-import is introduced in version 0.17of FreeCAD.

## Current Limitations

It is not possible providing data for a geometry, for example a length, in a spreadsheet and retrieving in the same spreadsheet the volume of the resulting shape. This will create a circular reference. This is a design decision. However, it is possible to use two different spreadsheets: one as data-source for geometry and another for reporting geometry-data.

It is not possible to select and copy multiple cells. Only the content of a cell from the input field can be copied and paste into the input field of another cell.

For FreeCAD earlier versions see Spreadsheet legacy

## Scripting Basics

```
import Spreadsheet
sheet = App.ActiveDocument.addObject("Spreadsheet::Sheet")
sheet.Label = "Dimensions"
```

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