If for whatever reason you cannot get your offline files to synchronize and you want to make sure you have a backup of them before messing with any of your settings follow these steps.
Download CSCCMD.exe version 1.1
csccmd /extract /target:c:temp /recurse2
If your offline files point to an old network location and you need to change it you can do so with these steps.
csccmd.exe /moveshare:OldServer NewServer