You can exchange files between a VirtualBox machine and the host system, be it Windows or Linux. When the virtual machine is installed, click on Machine - Settings in the main menu, and choose Shared Folders. You can configure two types of shared directories: transient and machine. Transient Folders are temporary objects which are planned to be removed from view when the virtual OS is restarted or shut down. At the same time, Machine Folders are permanent objects which are seen all the time until they are manually removed from the virtual OS. To add a new shared folder to the list, click on the add icon on the right of the form. In the field Folder Path, give the path to the specified shared folder in this operating system. Below, you can find some additional settings such as Read-only и Auto-mount. By default, shared folders are assigned full permissions, including the permission to write data and edit their contents, but if you check the box for Read-only, it restricts user permissions. The Auto-mount option places the corresponding folders into the section Machine Folders.