All Respondus .rsp files are stored in "project" folders inside the main Respondus Projects folder.
When moving one file at a time, use the “Archive Wizard” located on the Start menu in Respondus 4. The Archive Wizard will pull together all files (images, equations, etc) associated with the exam into one compressed archive file (with the .rsa extension). You can then copy this file to a removable storage (external USB drive), place it on a network drive, or e-mail it to the other computer. To restore the file to another computer that has Respondus 4 installed on it, select the Open task and “Browse” to the file. The project will be restored upon selecting it.
If you want to move all Respondus 4 project files from one computer to another, use Windows File Explorer to browse to the Respondus Projects folder. Copy all the "project" folders to a portable drive or a network folder. Then, on the second computer, locate the Respondus Projects folder and copy the "projects" folders into it.
Note that copying onto an existing Respondus Projects folder or existing "projects" folders might replace files of the same name.