This article explains how to apply the correct permissions in Citrix Workspace to access files on your computer's local storage while using the Virtual Lab application.
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Some versions of OSX also have a security setting that can block access to local folders.  This can be checked in system preferences > Security and Privacy > privacy tab > ensure that Citrix Viewer has access to the files and folders on your Mac.  
 
Instructions
	- Launch a Virtual Lab application, but before you do any work, choose Preferences in the Citrix viewer menu.
  
- In the File access section, select Read and write.  If you made a change, close and reopen the app so the change takes effect.
 