a multi form form file submition using react-hook-form & react-step-builder

i am trying to submit a form useing react-hook-form & react-step-builderin react js i mannaged to submit the form with out file all other field are working except file

how can i achive this

  <input
             
              {...register("idproof", { required: true })}
              onChange={props.handleChange}
              style={styles.file}
              type="file"
            />
          </div>

my code is also giving error when i tryed to put it in codesandbox so i cant give a working exaample but i will put the link to codesandbox here

https://codesandbox.io/s/wizardly-worker-zicnr?file=/src/App.js