[[!FormIt? &hooks=`uploadData`]]
<form action="" name="upload-data-file" method="post" enctype="multipart/form-data" class="form">
<label for="data-file"> Choose file</label>
<input type="file" name="data-file" id="data-file" required>
<input type="submit" value="Submit" id="submit-data-file">
</form>
[[!FormIt? &hooks=`uploadData`]]
<form action="" name="upload-data-file" method="post" enctype="multipart/form-data" class="form">
<label for="data-file"> Choose file</label>
<input type="file" name="data-file" id="data-file" required>
<input type="text" name="data-name" id="data-name">
<input type="submit" value="Submit" id="submit-data-file">
</form>
This question has been answered by goldsky. See the first response.
<input type="submit" name="submit" value="Submit" id="submit-data-file">