There is an easy way to wirelessly transfer files from a computer to your iPhone or iPad and vice versa using Wi-Fi.
Now, you can see the files from Documents on your computer. You can select several files or folders and click Download to get them from your iPhone or iPad to your computer.
To upload a file to your iPhone or iPad, click the Upload Files button and select the files or just drag & drop them into your browser. As soon as the files are uploaded, they'll instantly appear on your iOS device.
Once you're finished, please tap the Disconnect button in Documents on your iOS device or close the web page.
To use QR-code to establish the connection, click Show QR-code to Scan > open the Camera app to scan the code and tap Open in Documents prompt message.