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

# Custom Columns

Click the button shown in the picture below to create a Custom column.

<figure><img src="/files/fKJ9JtrSVZQ0LWkt7S9M" alt=""><figcaption></figcaption></figure>

You can create a **Custom column** based on your requirement. Name your field and choose your desired input format. The field can hold one of the following formats:

* **String**: You can add alphabets, numbers or alphanumerical inputs. Any number that is added will not have a numerical value (cannot be used for definite measure)
* **Number**: You can add numerical values to your field.
* **Boolean**: You can add Boolean Operators. Ex: '1' representing 'True' and '0' representing 'False'.
* **Date & Time**: You can add date, day and time inputs.

[Here is an example of how to create a custom column for meta fields](/kb/reports/custom-fields/calculated-fields/add-metafields-to-your-report.md)

We have categorized custom columns into two types:

{% content-ref url="/pages/-M\_UNBAiYn0ZADcp9ahG" %}
[Calculated Columns](/kb/reports/custom-fields/calculated-fields.md)
{% endcontent-ref %}

{% content-ref url="/pages/-M\_UNWH4QJiy-XP\_fkGr" %}
[Static Column](/kb/reports/custom-fields/static-field.md)
{% endcontent-ref %}