When you connect to LUapps using the Citrix Receiver client, you connect to a particular application running on a virtual machine on a server in the Computing Center. That kind of an arrangement brings up important questions like: 'How can I open the files I want to work on?' and 'Where do they get saved when I'm done?'. The answer depends partly on the kind of device you're connecting with. Refer to the annotated screenshot below:
First, you'll always see the 'Documents' and 'Desktop' folders from the VM itself. When in doubt, save things there. The LUapps system maps both of those to the corresponding folders inside the 'VirtualFiles' folder in your H: drive, which is backed up, and accessible from on-campus or over the internet. They're also in green, since they're mapped to your H: drive.
Note that LUapps will also map standard Lehigh network drives to the virtual machine, depending on your role at Lehigh, like the H: Drive (personal LAN storage for everyone), the I: Drive (departmental LAN storage for faculty and staff), the R: Drive (personal storage for faculty). These all have the 'Network Drive' icon. They'll appear no matter what kind of client device you're using. If you're connecting from a Lehigh-owned PC or Mac, these will likely show up twice in the list, since the client computer has them too. They're shown above, and indicated in green.
Remember NOT to save files into the 'Downloads', 'Pictures', 'Music', or 'Videos' folders. These folders are NOT mapped to any permanent storage resource.
If you're running the Receiver client on a macOS or Windows computer, the client software additionally connects the almost all of the disk drives and storage systems on your computer with the virtual machine so that you can open and save files from and to your computer. Those drives, called 'Client Drives' will show up in the virtual machine's list of drives with a note appended to their name in the format '(<drive letter> on <computer name>)'. 'Computername' will be the name of the computer you're connecting from, and the drive letters will be sequentially, and fairly arbitrarily assigned by the Citrix environment. Any kind of drive that's connected to your computer, whether it's physical or logical, will show up in the list. Your computer's internal hard drive, connected USB flash drives, mounted network drives, your Google Drive File Stream Drive, CDs, DVDs, mounted disk images, etc. They'll all appear with that appended note in parentheses, as shown in the screenshot below, designated in blue. Note that for Mac users, the letters given to those 'drives' are mostly arbitrary, except that 'C:' refers to your computer's boot disk. Remember that on your computer, your desktop and personal files are likely stored inside a folder called 'Users' inside 'C:' in a folder named according to your login.