I am running 64 bit Ubuntu Studio 12.04 and I suddenly noticed a file name "exo-file-manager.desktop" in the Home folder. I have no idea where it came from ... was not previously there until sometime in the last few days. I've been running this OS for many months, and suddenly the file mysteriously shows up in the Home folder.

Any ideas on what it is, why it's there, and if I can safely delete it?