JSFiddle - React, Tailwind, and code Playground

HTML

<div id='org_div1' onclick="addElement()"><input type="file" name="file" /></div>

JavaScript

var i = 0;

function addElement() {
    // create a new div element
    // and give it some content
    var newDiv = document.createElement('div');
    newDiv.innerHTML = '<input type="file" name="file' + (++i) + '" />';
    // add the newly created element and it's content into the DOM
    document.getElementById('org_div1').appendChild(newDiv);
}