<div class="row" id="uploadRow">

  <div class="col-12 col-md-6">

    <div class="file-upload-wrapper mb-4">

      <input data-mdb-file-upload-init

            type="file" id="resultatfilUpload" class="file-upload-input"

            data-mdb-default-msg="Upload spreadsheet"

            data-mdb-accepted-extensions="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"

      />

    </div>

  </div>

  <div class="col-12 col-md-6">

    <div class="file-upload-wrapper mb-4">

      <input data-mdb-file-upload-init

            type="file" id="SkiClassicsUpload" class="file-upload-input"

            data-mdb-default-msg="Upload text file"

            data-mdb-accepted-extensions="plain/text"

      />

    </div>

  </div>

</div>

<button onclick="toggleUploads()">

  Toggle uploads

</button>