For my SDR experiments, I installed Skywave Linux in a VirtualBox VM. To transfer IQ files, I needed a shared folder between the Linux guest and the windows host.
|Skywave Linux running in VirtualBox|
Long story short: To allow the user "andy" (in this case) access to the shared folder, he needs to be in the "vboxsf" group. To add that user to this group:
sudo usermod -G vboxsf -a andy
Works a treat.