Cannot delete files - file name is too long

My system lost its motherboard.  I recoevered data from the hard drive and saved recovered files to my file server.  I back up my server every week.  When I had to delete some back up copies becasue of space, a few files cannot be deleted becasue their filepath is too long (18 to 20 subfolders down).  Is there any way to delete them?  I tried renaming and moving and cut & paste, etc.  I was able to delete the recovery file on my server.