1. Log in to your
Account Information Panel.
2. Click on the 'Hosting' button in the top navigation bar.
3. Scroll down and click on the 'Login to cPanel' button.
4. Once you have logged in to cPanel, click on either the 'File Manager' button or the 'Legacy File Manager' button. The Legacy File Manager is basically a simplified version of the normal File Manager.
You can also use FTP to upload multiple files.
Click here to find out more about uploading files to your site