If you do not have FTP, you may download it at the bottom of Fox Renderfarm website and install it on your computer:
Then run the FileZilla, and enter information as shown below:
Username your id
Password: your registered password
Then you will see local site and remote site listing respectively on both sides and remote site here means Fox Renderfarm server:
Remind: The project directories on Fox Renderfarm server are named as 3D applications. Users should upload files to relative directory.
Select the directory you need upload files to, double-click into it, then you can directly drag the files from local site to the directory. For example, to upload files to 【blender_project】, double click into it and select the files from 【Local site】and drag them to 【blender_project】:
Then you will see the file information listing in 【Queued files】 and the uploading is finished when the transferred process shows 100%: