> For the complete documentation index, see [llms.txt](https://docs.impler.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.impler.io/features/multiselect-dropdown.md).

# Multiselect Dropdown

### i. Enable Multiselect from web portal

1. Click on the `+` button to add a new column.
2. Provide column `Name` and `Type` = `Select`.

<figure><img src="/files/TUl3Z7RLqnIz0OwOIety" alt=""><figcaption><p>Add Select Column</p></figcaption></figure>

3. Click on `Validations`.

<figure><img src="/files/nu1WBwHOpdkSCkckT1zB" alt=""><figcaption><p>Multiselect Validations</p></figcaption></figure>

4. We can provide allowed values in `Select Values`.
5. We can also enable Multi Select for select column. Which allows user to select multiple values in the cell.

<figure><img src="/files/0ikvBi7rXnsimlCpPLev" alt=""><figcaption><p>Specifying Delimiter</p></figcaption></figure>

6. Additionally we can sepcify `,` or `;` as delimiter for multi-select values.

### iii. Enabling Multiselect Dropdown using [Runtime Schema](/features/runtime-schema.md)

We can enable the Multiselect feature by providing a custom schema with the `allowMultiSelect` flag in our frontend code.

```javascript
showWidget({
  schema: [
    {
      key: 'choice',
      name: 'Eating Choice',
      type: 'Select',
      selectValues: ['Fruit', 'Vegetables', 'Nuts'],
      allowMultiSelect: true,
      delimiter: ';'
    }
  ]
});

```

## Sample file generation and format

Impler creates `.xlsx` and `.xlsm` files based on the columns' configuration:

* **.xlsx File**: Generated if no columns have Multiselect enabled.
* **.xlsm File**: Generated if any column has Multiselect enabled.

### Writing in .xlsm Files

When a column is marked as Multiselect, Impler appends `#MULTI` to the end of the column name in the Excel file. This allows users to select multiple options in the cell.

For detailed steps on how to write in `.xlsm` files refer to [Writing effectively into .xlsm files](/additional-resources/writing-effectively-into-.xlsm-files.md).

## Data Format

Columns with the Multiselect feature will send an array of selected values when sent to application [Using Webhook](/data-retrieval/using-webhook.md) or [Using Frontend Callback](/data-retrieval/using-frontend-callback.md).

***

If you have any questions, suggestions, or comments. Feel free to reach out to us over [**Discord**](https://discord.impler.io). We’re constantly improving to deliver the best Data Importer for your product, and we value your input.


---

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