TL;DR at the bottom
I'm on a Windows 8.1 host. I installed Xubuntu 14.04 on a virtual machine in Oracle's VirtualBox. The guest add-ons couldn't install properly. The CD shows all the time when I press the button to add the guest add-ons however I'm only able to access it at random times O_o. I'm rather new to Linux/virtualization but know to open a command winnow inside the CD directory and type in sudo sh VBoxLinuxAdditions.run in order to install the VBox Linux addons. That's what I did when the CD was accessible to me. The installation seemed ok so I restarted the system. It didn't work but I didn't really care because I was switching to a confortable resolution from Xubuntu's Display options.
My problem lies here: I have gotten my hands on some 10 GBs of files inside of my Xubuntu guest. I'd like to be able to transfer them to my Windows 8.1 host without any VBox Linux guest add-ons. Anyone can please help me to find out how to tat? It would be really appreciated to a complete newbie that is really ambitious to find out why Linux is better and safer to encourage a lot of people to use it! :)
Thank you very much!
TL;DR : How can I transfer files from a Xubuntu 14.04 LTS Oracle VirtualBox virtual machine guest to a Windows 8.1 host without the Linux guest add-ons. Thank you!