18F/calc

<form enctype="multipart/form-data" method="post"
      is="ajax-form"
      action="{% url 'data_capture:step_3' %}">

{% csrf_token %}

{% if request.is_ajax %}
{% include 'data_capture/messages.html' %}
{% endif %}

{{ form.non_field_errors }}

{{ form.file.errors }}

{{ form.file }}

<div class="form-button-row clearfix">
  <a href="{% url 'data_capture:step_2' %}" class="usa-button usa-button-secondary button-previous">Previous</a>

  <div class="submit-group">
    <button type="submit" class="usa-button usa-button-primary">Next</button>
    <span class="submit-label">
      Double check your data and fix any errors.
    </span>
  </div>
</div>

</form>