It is possible to copy files between the Virtual desktop / app and your Mac following these simple instructions.
Mac -> Virtual Desktop
In your virtual desktop open Windows Explorer to display a list of available drives. As well as displaying the drives that are connected to the virtual desktop, MyQuickCloud will also map your local Mac drive as you can see highlighted below
This enables you to simply browse that drive, find the files you need and copy and paste them to the virtual desktop.
Virtual App / Desktop -> Mac
Once again because MyQuickCloud has mapped the local Mac drive, saving and copying files to the Mac from the Virtual desktop or app is simple.
You can simply save the file to the mapped Mac drive or again copy and paste from the virtual desktop files into the mapped Mac drive.
This short video shows how to save a file from a published application, directly to your local Mac computer.