<form method="POST" action="http://export.writer.zoho.com/remotedoc.im?apikey=xxxxxxxxxxxxxxxxxxxxxx&output=editor
" enctype="multipart/form-data"
>
<input type="file" name="content">
<input type="hidden" name="saveurl" value="http://www.test.it/save.php
">
<input type="hidden" name="id" value="12345678">
<input type="hidden" name="format" value="doc">
<inpuy type="submit" value"Edit" name="submit">
</form>