The plugin support upload attachments to your Zoho record.
First, you need insert File upload field to your form.
If you have multiple File upload fields you need give them different name. Remember to click "Save" button after you added file upload fields.
Scroll to the last and you'll see Attahcments section when do mapping in feed.
Now if someone upload files in your form and the files will be uploaded to Zoho automatically.
The above three files all uploaded to Zoho record.
Purchase Contact Form 7 to Zoho Pro