> For the complete documentation index, see [llms.txt](https://boxlang.ortusbooks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://boxlang.ortusbooks.com/boxlang-+-++/modules/bx-spreadsheet/built-in-functions/spreadsheetaddcolumn.md).

# SpreadsheetAddColumn

Adds columns to a spreadsheet object.

## Method Signature

```
SpreadsheetAddColumn(spreadsheetObj=[any], data=[any], column=[any], row=[any], insert=[any], datatype=[any])
```

### Arguments

| Argument         | Type      | Required | Description                                                                              | Default |
| ---------------- | --------- | -------- | ---------------------------------------------------------------------------------------- | ------- |
| `spreadsheetObj` | `ANY`     | `true`   | The spreadsheet object.                                                                  |         |
| `data`           | `ARRAY`   | `true`   | An array of data to add to the column.                                                   |         |
| `column`         | `NUMERIC` | `false`  | The column number where to insert the data (1-based). If not specified, adds to the end. |         |
| `row`            | `NUMERIC` | `false`  | The row number where to start inserting the data (1-based). Default is 1.                | 1       |
| `insert`         | `BOOLEAN` | `false`  | Whether to insert a new column or overwrite existing column. Default is false.           | false   |
| `datatype`       | `STRING`  | `false`  | The data type to apply to the cells (not implemented in this version).                   |         |

## Examples

Add a column to a spreadsheet:

```js
// Add a column with data
var spreadsheet = SpreadsheetNew();
SpreadsheetAddColumn( spreadsheet, "ID", [ 1, 2, 3 ] );
```

Add multiple columns:

```js
// Build spreadsheet column by column
var spreadsheet = SpreadsheetNew();
SpreadsheetAddColumn( spreadsheet, "Name", [ "John", "Jane", "Bob" ] );
SpreadsheetAddColumn( spreadsheet, "Age", [ 30, 28, 35 ] );
```

## Related

* [SpreadsheetDeleteColumn()](/boxlang-+-++/modules/bx-spreadsheet/built-in-functions/spreadsheetdeletecolumn.md) - Delete a column
* [SpreadsheetSetColumnWidth()](/boxlang-+-++/modules/bx-spreadsheet/built-in-functions/spreadsheetsetcolumnwidth.md) - Set column width
* [SpreadsheetAddRow()](/boxlang-+-++/modules/bx-spreadsheet/built-in-functions/spreadsheetaddrow.md) - Add a row
* [Column Operations Guide](https://github.com/ortus-boxlang/boxlang-docs/blob/v1.x/boxlang-framework/boxlang-plus/modules/bx-spreadsheet/column-operations.md) - Working with columns


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