.RS File Type

I have a FortiSandbox that is getting all hung up on .rs file types.  I don't have a .rs file type associated with any of the VM's but, my VM job logs are backed up 6000+ and most times when I look it's on .rs file types.  These are directly integrated with a slew of FortiGates...  I'm really not sure as to the how and why it's taking up precious VM time with a file type that's not associated with a VM...  Anyone have any ideas?