1. Access the Plesk Control Panel by logging in.
2. Ensure that the website has been added to Plesk.
3. Click on the ‘Files’ menu located in the left panel of Plesk
4. Choose the ‘httpdocs’ folder
5. Click on the ‘Upload’ button found in the top options.
6. A browse window will appear, allowing you to select your files (hold down the Ctrl key for multiple selections) from your local computer.
7. Click on the OPEN button to upload the files.
8. Additionally, you can upload your content using any FTP client software, such as ‘FileZilla’. To download FileZilla, refer to here.