Virtual usb storage?

there is this citrix thingy (citrix xen desktop), and i want to transfer some files to my computer;

but xen destop thingy, is bascally, i logging in on a virtual machine over the internet, and i need a way to transfer that file. from that virtual machine to my computer

luckily, it picks up external drives (discs not included) but the file is huge and the usb is super slow( cuz i don't really use them so no point of buying one)

so any clue?

Try some online services if you can, like Dropbox or Google Drive. Combined they'll give you quite a bit of storage.